Lorandersonia pulchella

(A. Gray) Urbatsch

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.

"fine" is not a number.

... more about "Lorandersonia pulchella"
not tailed +, rounded +  and obtuse +
distinct +
acute;attenuate or acuminate +
subequal +
scarious +
usually triangular +  and linear +
cymiform +  and corymbiform +
indeterminate +  and determinate +
rounded +
0.5cm +  and 14cm +
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) Urbatsch +
decurrent +
Linosyris pulchella +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
concave;planar;linear-oblong;linear +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
rugulose +  and muricate +
subequal +
Southwestern rabbitbrush +
not 2-lipped +  and actinomorphic +
pale +  and dark yellow +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
5 +  and 8 +
4-angled +  and turbinate +
fertile +  and bisexual +
fertile +  and bisexual +
N.Mex. +, Tex. +  and Mexico (Chihuahua) +
1500–2000 m +
resinous +
gland-dotted +
hairy +  and glabrous +
pustulate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry hills and plains, often sandy sites +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
obconic;cylindric +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
petiolate +  and sessile +
ascending +  and appressed +
spreading;recurved +
lanceolate +  and triangular +
serrate +  and entire +
1.3mm +  and 9mm +
ovate +  and oblong or lanceolate +
0.7mm +  and 2mm +
2-carpellate +
yellowish tan +
persistent +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Flowering late summer–fall. +
ovate +  and oblong or lanceolate +
subequal +  and unequal +
bearing subulate enations +, hairy +  and bristly +
0 +  and 2 +
0.5 cm5 mm <br />0.005 m <br /> (?) +
exalbuminous +
Illustrated +
resinous +
whitish +  and gray +
erect +  and ascending +
distal +  and middle +
attenuate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus pulchellus +  and Chrysothamnus pulchellus subsp. elatior +
Lorandersonia pulchella +
Lorandersonia +
species +
perennial +, biennial +  and annual +