Hemizonella minima
Proc. Amer. Acad. Arts 9: 189. 1874.
IllustratedEndemic
Basionym: Hemizonia minima A. Gray Proc. Amer. Acad. Arts 6: 548. 1865
Synonyms: Madia minima (A. Gray) D. D. Keck
Leaf-blades 5–25 × (0.5–) 1–3 mm. Involucres (1–) 2–4 × (1–) 2–4 mm. Disc corollas 1–2.5 mm. Ray cypselae 1.8–2.8 mm; disc cypselae 1.8–2.8 mm. 2n = 42–44.
Phenology: Flowering Apr–Aug.
Habitat: Gravelly or rocky, usually open sites, scrublands, meadows, forests
Elevation: 300–2900 m
Distribution
B.C., Calif., Idaho, Mont., Nev., Oreg., Wash.
Discussion
Hemizonella minima is self-compatible, like most other tarweeds that are distributed widely in western North America. Taylor 8147 (JEPS), from the Sierra Nevada (Tioga Peak, Mono County, California), is an unusually late-flowering (15 Sep 1982) and high-elevation (2900 m) collection.
Selected References
None.
Lower Taxa
None.
... more about "Hemizonella minima"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
linear to linear-elliptic +
lobed;usually spatulate;oblanceolate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
zygomorphic +
pale-yellow +
monomorphic +
dimorphic +
staminate +
staminate +
sessile +
alternate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
corymbiform +
singly +
discoid +
indeterminate +
Present +
surrounding +
obovoid +
1mm;3mm +
deltate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
absent +
unequal +
opposite +
Proc. Amer. Acad. Arts +
1874 +
pistillate +
absent +
fertile +
obcompressed +
paleate +
flat;convex +
fibrous +
exalbuminous +
modifed +
absent +
alternate +
erect +
2-branched +
papillate +
Hemizonella minima +
Hemizonella +
species +
cylindric +
equaling +
much shorter +
equaling +
annual +