Tetraneuris acaulis var. arizonica

(Greene) K. F. Parker

Phytologia 45: 467. 1980.

Basionym: Tetraneuris arizonica Greene Pittonia 3: 266. 1898
Synonyms: Hymenoxys acaulis var. arizonica (Greene) K. F. Parker Hymenoxys acaulis var. nana S. L. Welsh T. acaulis var. nana (S. L. Welsh) Kartesz & Gandhi
Treatment appears in FNA Volume 21. Treatment on page 453. Mentioned on page 451, 452.
Revision as of 20:33, 16 December 2019 by FNA>Volume Importer

Plants (2–)6–15(–30+) cm. Leaves: blades spatulate or oblanceolate to linear-oblanceolate, glabrous or moderately to densely hairy (not strigoso-canescent or sericeous), densely gland-dotted. Heads 1–20(–35) per plant. Peduncles (1–)5–15(–30) cm. Outer phyllaries 7–10, 3.9–6.5 mm, margins 0–0.3(–0.4) mm wide, often slightly scarious, abaxial faces sparsely to usually moderately to sometimes densely hairy. Ray florets 9–15; corollas 11–17 mm. Cypselae 3–3.7 mm; pappi 2–3.5 mm. 2n = 28, 30, 56, 60.


Phenology: Flowering (Apr–)May–Jul(–Sep).
Habitat: Roadsides, hillsides, grasslands, edges of woods, aspen meadows
Elevation: 1300–2900 m

Distribution

V21-1136-distribution-map.gif

Ariz., Calif., Colo., Idaho, Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
Mark W. Bierner +  and Billie L. Turner +
(Greene) K. F. Parker +
Tetraneuris arizonica +
Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +  and Utah. +
1300–2900 m +
Roadsides, hillsides, grasslands, edges of woods, aspen meadows +
Flowering (Apr–)May–Jul(–Sep). +
Illustrated +  and Endemic +
Hymenoxys acaulis var. arizonica +, Hymenoxys acaulis var. nana +  and T. acaulis var. nana +
Tetraneuris acaulis var. arizonica +
Tetraneuris acaulis +
variety +