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163a.9. Solidago Linnaeus (sect. Solidago ) subsect. Venosae (G. Don) G. L. Nesom, Phytologia. 75: 9. 1993.
Solidago ser. Venosae G. Don in J. C. Loudon, Hort. Brit., 348. 1830; Solidago [unranked] Notabiles Mackenzie; Solidago [unranked] Ulmifoliae Mackenzie; Solidago [unranked] Venosae (G. Don) de Candolle
Leaves: basal withering by flowering, proximalmost cauline petiolate or sessile, usually withering by flowering, proximal usually largest, not 3-nerved (except S. drummondii), usually with pronounced lateral nerves along entire midnerve. Heads in thyrsiform-paniculiform, open to congested, cone-shaped secund arrays, proximal branches arching, secund, often proximalmost elongate and array repeated distally. Phyllaries not striate, eglandular. Pappi bristles usually in 2, rarely in 3 series (shorter, outer setiform scales rarely present, inner weakly, if at all, clavate, moderately so in S. odora).
Species 7 (7 in the flora): North America.
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| 1 |
Stems developing from branched caudices or short rhizomes, elongate rhizomes 0 |
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(2) |
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Stems developing from elongate creeping rhizomes |
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(4) |
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| 2 (1) |
Leaves entire, minutely translucent gland-dotted, usually anise-scented when crushed |
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54 Solidago odora |
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Leaves coarsely to finely serrate, not gland-dotted, not anise-scented |
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(3) |
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| 3 (2) |
Leaves sparsely hirsute at least on abaxial midribs and main nerves |
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49 Solidago ulmifolia |
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Leaves glabrous |
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50 Solidago delicatula |
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| 4 (1) |
Mid cauline leaves sessile, ± clasping, obscurely serrulate or subentire, not rugose |
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53 Solidago fistulosa |
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Leaves subsessile, not clasping, ± strongly serrate, rugose |
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(5) |
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| 5 (4) |
Involucres mostly 4–6 mm; broader phyllaries 0.7–1.2 mm wide; stems glabrousbelow arrays; mid cauline leaves elliptic |
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51 Solidago latissimifolia |
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Involucres mostly 2.5–4 mm; phyllaries usually less than 0.5 mm wide; stems hairy below arrays (except var. sphagnophila which is glabrous but otherwise like var. rugosa); mid cauline leaves lanceolate to ovate |
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52 Solidago rugosa |
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