Difference between revisions of "Tetradymia nuttallii"
Fl. N. Amer. 2: 447. 1843.
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Tetradymia | |genus=Tetradymia | ||
Revision as of 18:41, 24 September 2019
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.