| 1 |
Leaves crenate or shallowly lobed. |
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(2) |
| + |
Leaves deeply lobed at least 1/2 way to center. |
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(10) |
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| 2 (1) |
Flowers and leaves arising in whorls on elongated stems |
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1 Androsace axillaris |
| + |
Flowers and leaves not as above. |
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(3) |
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| 3 (2) |
Bracts leaflike, often dentate |
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5 Androsace rotundifolia |
| + |
Bracts not leaflike, margin entire. |
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(4) |
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| 4 (3) |
Calyx parted nearly to base |
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12 Androsace umbellata |
| + |
Calyx parted to middle or above. |
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(5) |
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| 5 (4) |
Base of leaf blade deeply cordate, sinus penetrating 1/4-1/2 length of leaves. |
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(6) |
| + |
Base of leaf blade shallowly cordate, sinus penetrating ca. 1/4 or less length of leaves. |
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(8) |
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| 6 (5) |
Herbs annual; leaf blade 4-7 mm wide |
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14 Androsace gmelinii |
| + |
Herbs perennial; leaf blade 3-7 cm wide. |
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(7) |
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| 7 (6) |
Plants with reddish hairs; corolla purple |
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4 Androsace croftii |
| + |
Plants with white hairs; corolla white |
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13 Androsace henryi |
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| 8 (5) |
Scapes ca. as long as to slightly longer than leaves; pedicel ca. 1/2 as long as scapes, reflexed in fruit; leaves rust-colored pilose |
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17 Androsace kouytchensis |
| + |
Scapes distinctly longer than leaves; pedicel ca. 1/5 as long as scapes or shorter, not recurved in fruit; leaves minutely strigillose or bristly. |
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(9) |
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| 9 (8) |
Leaf blade orbicular, subleathery; calyx parted to middle |
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15 Androsace paxiana |
| + |
Leaf blade ovate, membranous, base cordate; calyx parted below middle |
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16 Androsace gracilis |
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| 10 (1) |
Plants ± cespitose; caudex with many dwarf shoots, encircled by petioles of old leaves. |
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(11) |
| + |
Plants solitary or fasciculate, without branched caudex. |
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(12) |
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| 11 (10) |
Leaves palmately lobed to base, divided again, segments linear |
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10 Androsace alchemilloides |
| + |
Leaves 3-5-lobed to middle |
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11 Androsace wilsoniana |
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| 12 (10) |
Plants flagellate. |
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(13) |
| + |
Plants not flagellate. |
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(14) |
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| 13 (12) |
Stolons much longer than scapes, retrorse pubescent; leaves lobed below middle |
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2 Androsace cuscutiformis |
| + |
Stolons ca. as long as scapes, ± spreading pubescent; leaves lobed to middle |
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3 Androsace geraniifolia |
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| 14 (12) |
Plants (at least petiole) usually with reddish hairs. |
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(15) |
| + |
Plants with white hairs. |
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(16) |
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| 15 (14) |
Leaves strigillose, hairs less than 1 mm |
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4 Androsace croftii |
| + |
Leaves hirsute, hairs 1-2 mm |
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6 Androsace medifissa |
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| 16 (14) |
Pedicel shorter than bracts; umbels compact, subcapitate |
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9 Androsace dissecta |
| + |
Pedicel longer than bracts; umbels lax. |
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(17) |
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| 17 (16) |
Plants strigillose, short appressed pubescent; umbels 10-25-flowered; scapes erect, ca. 2 × as long as leaves |
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7 Androsace elatior |
| + |
Plants pilose, with spreading long hairs; umbels 3-8-flowered; scapes diffuse, ca. as long as to slightly longer than leaves |
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8 Androsace gagnepainiana |
