Tetradymia nuttallii
Fl. N. Amer. 2: 447. 1843.
Endemic
Shrubs, 10–120 cm. Stems 1–5+, erect, spiny, pannose but for glabrescent streaks. Leaves: primaries forming straight or recurved spines, 5–25 mm; secondaries spatulate, 10–20 mm, tomentose to nearly glabrous. Heads 4–6. Peduncles 2–12 mm. Involucres turbinate to cylindric, 6–9 mm. Phyllaries 4, oblong. Florets 4; corollas bright-yellow, 8–10 mm. Cypselae 4–6 mm, densely hirsute; pappi of 75–100 bristles 9–10 mm. 2n = 60.
Phenology: Flowering spring–summer.
Habitat: Rocky or sandy places, sagebrush scrub or shadscale scrub
Elevation: 1300–2100 m
Distribution
Nev., Utah, Wyo.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Tetradymia nuttallii"
introrse +
connate +
papillate +
truncate-penicillate;usually truncate;rounded-truncate +
scarious +
hispidulous +
papillate +
continuous +
decurrent +
nerved +
linear;filiform narrowly lanceolate or oblanceolate +
winged;nerved;ribbed +
1;15 +
stigmatic +
persistent +
75;100 +
absent +
not 2-lipped +
bright-yellow +
monomorphic +
5-ribbed +
hirsute +
4mm;6mm +
staminate +
straight +
distinct +
proximal +
bisexual +
dispersed +
discoid +
singly +
indeterminate +
4;6 +
surrounding +
turbinate;cylindric +
sessile +
alternate +
cauline +
recurved +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
herbaceous +
falling +
erect +
oblong +
subequal +
equal +
Fl. N. Amer. +
1843 +
absent +
epaleate +
foveolate +
conic;usually flat;convex +
fibrous +
white;stramineous +
spatulate +
exalbuminous +
modifed +
1;2 +
Endemic +
straight +
recurved +
alternate +
erect +
pannose +
glabrescent +
2-branched +
glabrous +
papillate +
Tetradymia nuttallii +
Tetradymia +
species +
dilated +
longer +