Tetradymia argyraea
Aliso 2: 237. 1950.
Endemic
Shrubs, 50–200 cm. Stems 1–5+, erect, spiny, unevenly pannose with glabrescent streaks. Leaves: primaries forming ascending spines, 10–30 mm; secondaries filiform to clavate, 3–20 (× 1+) mm, glabrous or nearly so. Heads 2–5. Peduncles 1–4 mm. Involucres turbinate, ca. 7 mm. Phyllaries 5, oval-elliptic. Florets 5; corollas pale-yellow, ca. 9 mm. Cypselae 2.5–3.5 mm, glabrous; pappi of 75–100 bristles ca. 8 mm. 2n = 60.
Phenology: Flowering summer.
Habitat: Rocky sites, pinyon-juniper woodlands
Elevation: 1400–2100 m
Discussion
Selected References
None.
Lower Taxa
None.
"[mm" is not declared as a valid unit of measurement for this property.
... more about "Tetradymia argyraea"
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 +
8 cm80 mm <br />0.08 m <br /> (?) +
absent +
not 2-lipped +
pale-yellow +
9 cm90 mm <br />0.09 m <br /> (?) +
monomorphic +
5-ribbed +
glabrous +
2.5mm;3.5mm +
staminate +
Calif. +
straight +
distinct +
proximal +
bisexual +
dispersed +
discoid +
singly +
indeterminate +
2;5 +
surrounding +
turbinate +
7 cm70 mm <br />0.07 m <br /> (?) +
sessile +
alternate +
cauline +
recurved +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
absent +
tough +
thick +
absent +
connate +
oval-elliptic +
persistent +
distinct +
herbaceous +
falling +
erect +
subequal +
equal +
Aliso +
1950 +
absent +
epaleate +
foveolate +
conic;usually flat;convex +
fibrous +
white;stramineous +
1+] +
exalbuminous +
modifed +
1;2 +
Endemic +
ascending +
alternate +
erect +
pannose +
glabrescent +
2-branched +
glabrous +
papillate +
Tetradymia argyraea +
Tetradymia +
species +
dilated +
longer +