Difference between revisions of "Oreostemma alpigenum"
Pittonia 4: 224. 1900.
Basionym: Haplopappus alpigenus Torrey & A. Gray Fl. N. Amer. 2: 241. 1842 (as Aplopappus)
Synonyms: Aster alpigenus (Torrey & A. Gray) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 360.
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Revision as of 18:44, 24 September 2019
Plants 4–40 cm; stems, leaves, and phyllaries densely villous to glabrate, eglandular (at least some hairs always perceptible on distal stems and on proximal portions of phyllaries). Leaf blades oblanceolate. Phyllaries 1-nerved, herbaceous or slightly tawny-indurate proximally; outer 0.8–1.2 mm wide proximally.
Distribution
w United States.
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Plants 5–18(–30) cm; basal leaf blades oblanceolate (30–)60–100(–150) × 6–12 mm, apices obtuse to rounded | Oreostemma alpigenum var. alpigenum |
| 1 | Plants 8–40 or 4–15 cm; basal leaf blades linear-oblanceolate to narrowly oblanceolate, 30–120(–350) × (1–)2–6(–9) mm, apices acute | > 2 |
| 2 | Plants (4–)8–40(–70) cm; basal leaf blades (30–)80–120(–350) × (1–)2–6(–9) mm; cypselae strigillose | Oreostemma alpigenum var. andersonii |
| 2 | Plants 4–15 cm; basal leaf blades (30–)40–90(–120) × (1–)2–4(–6) mm; cypselae strigillose only distally | Oreostemma alpigenum var. haydenii |