Oreostemma alpigenum
Pittonia 4: 224. 1900.
IllustratedEndemic
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.
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
Calif., Idaho, Nev., Oreg., Wash., Wyo.
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 |
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... more about "Oreostemma alpigenum"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
3-nerved +
linear;oblanceolate +
ribbed +
stigmatic +
barbellate +
tawny-white +
persistent +
25;40 +
absent +
sessile +
alternate +
reduced +
absent +
monomorphic +
dimorphic +
cylindric +
staminate +
straight +
herbaceous +
proximal +
oblanceolate;linear-elliptic +
indurate +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
indeterminate +
surrounding +
turbinate +
oblanceolate +
eglandular +
alternate +
basal +
erect +
herbaceous +
proximal +
subequal +
indurate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
absent +
connate +
persistent +
appressed +
distinct +
falling +
unequal +
Pittonia +
1900 +
pistillate +
absent +
fertile +
epaleate +
pitted +
concave;usually flat;conic +
fibrous +
exalbuminous +
modifed +
1;3;4 +
alternate +
eglandular +
linear-lanceolate +
2-branched +
glabrous +
Oreostemma alpigenum +
Oreostemma +
species +
tubular +
shorter +
perennial +