Lorandersonia pulchella

(A. Gray) Urbatsch, R. P. Roberts & Neubig

Sida 21: 1624. 2005.

Common names: Southwestern rabbitbrush
Illustrated
Basionym: Linosyris pulchella A. Gray Smithsonian Contr. Knowl. 3(5): 96. 1852
Synonyms: Chrysothamnus pulchellus (A. Gray) Greene Chrysothamnus pulchellus subsp. elatior (Standley) H. M. Hall & Clements
Treatment appears in FNA Volume 20. Treatment on page 180. Mentioned on page 178, 179.

Shrubs, 80–120 cm. Stems single, greenish when young, becoming whitish to gray, fastigiately branched distal to middle (angled from leaf bases), glabrous. Leaves ascending to appressed; blades linear or linear-oblong, 10–40 × 1–2.5 mm, planar or adaxially concave, margins eciliate, midveins evident, apices acute to acuminate, faces glabrous. Heads in cymiform to corymbiform arrays 0.5–14 cm wide, sometimes borne singly. Involucres obconic to cylindric, 10–12 × 4–6 mm. Phyllaries 24–30 in 4–5 series, in 5 vertical ranks, mostly tan, green subapical patch shiny, midnerves evident in distal 1/2, keeled, ovate to oblong or lanceolate, 1.3–9 × 0.7–2 mm, unequal, mostly chartaceous, margins narrowly scarious, entire apices acute to attenuate or acuminate, faces glabrous. Receptacles with 0–2 scales ca. 0.5 mm. Ray florets 0. Disc florets 5; corollas 9–12 mm, glabrous, lobes 1–1.5 mm; style branches 4.5–6 mm, appendages attenuate, 1.7–2.5 mm. Cypselae brownish, turbinate, sharply 4-angled, 4.5–6.3 mm, 5–8 ribbed, faces glabrous or sparsely hairy; pappi yellowish tan (± flattened, barbellate), 9–11 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Dry hills and plains, often sandy sites
Elevation: 1500–2000 m

Distribution

V20-392-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua).

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Lorandersonia pulchella"
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) Urbatsch, R. P. Roberts & Neubig +
Linosyris pulchella +
Southwestern rabbitbrush +
N.Mex. +, Tex. +  and Mexico (Chihuahua). +
1500–2000 m +
Dry hills and plains, often sandy sites +
Flowering late summer–fall. +
Illustrated +
Chrysothamnus pulchellus +  and Chrysothamnus pulchellus subsp. elatior +
Lorandersonia pulchella +
Lorandersonia +
species +