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Involucres terminal at tips of short branchlets proximally, not appressed to branches; peduncles sometimes present |
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(2) |
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Involucres not terminal at tips of short branchlets proximally, usually appressed to branches; peduncles absent |
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(11) |
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2 (1) |
Flowers 0.7-1.5 mm; perianth yellow or cream; arid regions of e and se California, wc Nevada |
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(3) |
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Flowers 1-2.5(-3) mm; perianth yellow or white to pink, rose, or red; Coast Ranges and w Sierra Nevada, California |
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(4) |
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3 (2) |
Perianths yellow; flowers 0.7-1 mm; inflorescences diffuse, spreading; Mojave Desert, se Kern, ne Los Angeles, and nw San Bernardino counties, California |
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199 Eriogonum mohavense |
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Perianths cream; flowers 1-1.5 mm; inflorescences narrow; Great Basin, s Mono and n Inyo counties, California, w Mineral and Esmeralda counties, Nevada |
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200 Eriogonum ampullaceum |
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4 (2) |
Stems glabrous; involucres sessile or, if short-pedunculate, plants from western foothills of Sierra Nevada, California |
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(5) |
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Stems tomentose or, if glabrous, involucres pedunculate at proximal nodes and plants from Coast Ranges of California |
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(7) |
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5 (4) |
Basal leaf blades oblong-ovate, reniform, or rounded to cordate; involucres 3-4 mm, 5-toothed; n California from San Mateo, Santa Clara, and Mariposa counties n to sw and sc Oregon |
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208 Eriogonum luteolum (in part) |
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Basal leaf blades suborbiculate or round to reniform; involucres 2-4 mm, 5-8-toothed; wc California from Santa Clara and Stanislaus counties s to Santa Barbara and Ventura counties |
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(6) |
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6 (5) |
Involucres 2-2.5 mm; 5-toothed; flowers 2-2.5(-3) mm, perianth minutely puberulent, white to rose or yellow in fruit; Santa Clara and Stanislaus counties s to w Kern and nw Ventura counties, California |
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206 Eriogonum covilleanum |
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Involucres 3-4 mm; 6-8-toothed; flowers 1-2 mm, perianth glabrous, white to rose in fruit; c Monterey and w San Benito counties, California |
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207 Eriogonum nortonii |
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7 (4) |
Involucres glabrous; e Monterey, w San Benito, and s Santa Clara (extirpated) counties, California |
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205 Eriogonum argillosum |
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Involucres tomentose; Contra Costa, Fresno, Kern, Merced, Monterey, San Benito, San Luis Obispo, and Solano counties, California |
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(8) |
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8 (7) |
Leaves strictly basal, blade suborbiculate; styles 0.1-0.3 mm; sw Fresno County, California |
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201 Eriogonum eastwoodianum |
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Leaves basal and subbasal, or basal and cauline, suborbiculate or narrowly oblong to ovate; styles 0.2-1 mm; Contra Costa, Fresno, Kern, Merced, Monterey, San Benito, San Luis Obispo, and Solano counties, California |
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(9) |
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9 (8) |
Involucres 2.5-3.5(-4) mm; styles 0.2-0.3 mm; e Contra Costa and s Solano counties, California (extinct) |
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204 Eriogonum truncatum |
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Involucres (1.5-)1.8-2.5 mm; styles 0.2-1 mm; Fresno, Kern, Merced Monterey, San Benito, and San Luis Obispo counties, California |
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(10) |
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10 (9) |
Perianths not pustulose; achene beaks granular; involucres 2-2.5 mm; leaves basal and subbasal, rarely cauline; nw Kern, se Monterey, and ne San Luis Obispo counties, California |
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202 Eriogonum temblorense |
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Perianths pustulose; achene beaks papillose; involucres (1.5-)1.8-2 mm; leaves basal and often cauline; w Fresno, sw Merced, and se San Benito counties, California |
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203 Eriogonum vestitum |
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11 (1) |
Leaf blades puberulent to short-pilose or sericeous; flowering stems and inflorescence branches puberulent to short-pilose or sericeous |
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(12) |
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Leaf blades tomentose at least abaxially; flowering stems and inflorescence branches glabrous or tomentose to floccose or lanate |
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(13) |
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12 (11) |
Outer tepals oblong-lanceolate to oblong-ovate; plants puberulent to short-pilose; n Arizona, nw and sw Colorado, nw New Mexico, e and wc Utah, sw Wyoming |
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223 Eriogonum divaricatum |
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Outer tepals fan-shaped and hooded; plants sericeous; nw Arizona, se Nevada, sc Utah |
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224 Eriogonum darrovii |
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13 (11) |
Perianths densely pubescent, white to rose; nw California |
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222 Eriogonum dasyanthemum |
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Perianths glabrous or sparsely glandular, not densely hairy, white, creamy white, yellow, rose, or red; widespread |
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(14) |
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14 (13) |
Involucres (1.8-)2-5(-7) mm; outer tepals not fan-shaped |
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(15) |
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Involucres 1-1.5 mm or, if 2 mm, outer tepals fan-shaped or slightly hastate proximally and plants primarily of Great Basin and warm desert regions |
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(21) |
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15 (14) |
Leaf blades oblong-obovate to oblanceolate or oblong; flowering stems and inflorescence branches lanate to tomentose or floccose or, if glabrous, plants not of central Sierra Nevada |
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(16) |
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Leaf blades round-ovate to rounded, reniform, or nearly so or, if not, inflorescence branches glabrous and plants of Sierra Nevada; flowering stems and inflorescence branches glabrous or tomentose to floccose |
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(18) |
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16 (15) |
Involucres (3.5-)4-5 mm, cylindric; outer tepals narrowly obovate to oblong; achenes 1.8-2(-2.2) mm; California and sw Oregon |
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212 Eriogonum roseum |
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Involucres (1.8-)2-3 mm, turbinate; outer tepals lanceolate to oblong or oblong-obovate; achenes 1-2 mm; California |
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(17) |
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17 (16) |
Inflorescence branches straight; basal leaf blades oblanceolate to oblong, (0.8-)1-4(-6) cm, petiole not winged; involucres (1.8-)2-3 mm; flowers 1.5-3 mm; perianth white to pink or yellow; California |
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213 Eriogonum gracile |
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Inflorescence branches upwardly curved; basal leaf blades oblanceolate or elliptic to ovate or nearly rounded, 1-2 cm, petiole occasionally winged; involucres 2.5-3 mm; flowers 1.5-2 mm, perianth white to rose; sw California |
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214 Eriogonum cithariforme |
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18 (15) |
Inflorescence branches floccose, especially proximally; leaves basal; perianths white to rose or pale yellow; nw California, w Idaho, n Nevada, c and e Oregon, se Washington |
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209 Eriogonum vimineum |
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Inflorescence branches glabrous or occasionally tomentose, or if floccose then leaves basal and cauline; stems usually 1; perianths white to pink, red, or yellow; California |
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(19) |
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19 (18) |
Involucres (3.5-)4-5(-7) mm; plants 4-10 dm; s California |
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211 Eriogonum molestum |
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Involucres 2-4 mm; plants 1-5 dm; California n to Oregon, e to Arizona and Utah |
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(20) |
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20 (19) |
Leaves basal and cauline, involucres 3-3.5 mm, and flowers 1.5-2 mm on floccose inflorescence branches or, if leaves strictly basal and stems glabrous, involucres 2-3.5 mm and plants of foothills and mid-elevation of central Sierra Nevada; perianths white to rose; n California |
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208 Eriogonum luteolum (in part) |
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Leaves basal; involucres 3-4 mm; flowers 1.5-2 mm; perianth white to pink or red, rarely yellow; flowering stems glabrous; w Arizona, s California, s Nevada, s Utah |
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210 Eriogonum davidsonii |
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21 (14) |
Stems glabrous or, if tomentose, then flowers glandular and plants of eastern slope of Sierra Nevada and Great Basin; outer tepals oblong to oblong-obovate |
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(22) |
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Stems tomentose to floccose; outer tepals narrowly to broadly fan-shaped or slightly hastate proximally |
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(24) |
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22 (21) |
Perianths yellow or pale yellowish, rarely whitish; flowers 0.6-0.8(-1) mm;e California, w Nevada, sc Oregon |
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217 Eriogonum brachyanthum |
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Perianths white to rose; flowers 1-2 mm; e and s California, sc Idaho, Nevada, e Oregon, sw Utah, e Washington |
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(23) |
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23 (22) |
Flowers 1.5-2 mm; perianths usually minutely glandular, rarely glabrous; flowering stems and inflorescence branches glabrous or tomentose; e and s California, sc Idaho, Nevada, e Oregon, sw Utah, e Washington |
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215 Eriogonum baileyi |
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Flowers 1-1.5 mm; perianths glabrous; flowering stems and inflorescence branches glabrous; sw California |
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216 Eriogonum elegans |
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24 (21) |
Outer tepals slightly hastate proximally in fruit; flowers 0.8-1.2 mm; involucres campanulate, 1-2 mm; montane habitats; c Riverside, w San Bernardino, and nc San Diego counties, California (presumed extinct) |
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218 Eriogonum evanidum |
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Outer tepals fan-shaped; flowers 1-3.5 mm; involucres 1-2.5 mm; desert habitats; not of c Riverside, w San Bernardino, and nc San Diego counties, California |
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(25) |
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25 (24) |
Leaves cauline; leaf blades narrowly oblanceolate to broadly elliptic; plants narrowly erect, (0.5-)1-6 dm; perianths white, becoming pink or red; c and s Arizona, se California (presumed extirpated), w and s New Mexico, w Texas, s Utah |
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221 Eriogonum polycladon |
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Leaves basal; leaf blades suborbiculate or rounded to cordate; plants usually spreading, 0.5-1.5(-3) dm; perianths white to pink or pale yellow to yellow, rarely creamy white, becoming pink or red; widespread |
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(26) |
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26 (25) |
Perianths pale yellow or yellow, rarely creamy white, becoming red; outer tepals broadly fan-shaped; inflorescences diffuse, branches inwardly curved distally; achenes 1-1.3 mm; nw Arizona, e California, sw Idaho, Nevada, se Oregon, sw Utah |
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219 Eriogonum nidularium |
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Perianths white to pink or pale yellowish, outer tepals narrowly fan-shaped; inflorescences open, branches not inwardly curved distally; achenes 1.5-1.8 mm; Arizona, e California, nw and sw Colorado, sw Idaho, Nevada, w New Mexico, Utah |
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220 Eriogonum palmerianum |
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