Deinandra arida

(D. D. Keck) B. G. Baldwin

Novon 9: 467. 1999.

EndemicConservation concern
Basionym: Hemizonia arida D. D. Keck Aliso 4: 109. 1958
Treatment appears in FNA Volume 21. Treatment on page 282. Mentioned on page 280, 281, 283.

Annuals, 20–80 cm. Stems ± solid. Leaves: proximal blades toothed to entire, faces hispid-hirsute and stipitate-glandular. Heads in paniculiform arrays. Bracts subtending heads usually not overlapping each involucre. Phyllaries ± evenly stipitate-glandular, including margins and apices, with nonglandular, non-pustule-based hairs as well. Paleae in 1 series. Ray-florets (4–) 8 (–10); laminae deep yellow, 5–7 mm. Disc-florets 17–25, all or mostly functionally staminate; anthers yellow or brownish. Pappi usually 0, rarely of 1–5 linear to setiform scales 0.1–0.6 mm. 2n = 24.


Phenology: Flowering Apr–Nov.
Habitat: Washes, edges of springs and seeps, and adjacent slopes, cliffs, or ledges, often in ± alkaline, sandy, gravelly, or clayey soils
Elevation: 600–1000 m

Discussion

Of conservation concern.

Deinandra arida is known only from Red Rock and Last Chance canyons and associated tributaries in the El Paso Mountains, western Mojave Desert. Depauperate specimens resemble D. kelloggii, which also has been documented from the Red Rock Canyon area.

Selected References

None.

Lower Taxa

None.
... more about "Deinandra arida"
not tailed +, rounded +  and obtuse +
brownish +  and yellow +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Bruce G. Baldwin +  and John L. Strother +
(D. D. Keck) B. G. Baldwin +
decurrent +
Hemizonia arida +
compound +  and simple +
linear to linear-elliptic +
toothed;pinnatifid;lance-linear;oblanceolate to linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
overlapping +
barbellulate +  and barbellate +
yellow +  and pale-yellow +
hairy +  and glabrous +
fusiform +, clavate +, obpyramidal +, terete +, compressed +  and obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
600–1000 m +
stipitate-glandular +  and hispid-hirsute +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Washes, edges of springs and seeps, and adjacent slopes, cliffs, or ledges, often in ± alkaline, sandy, gravelly, or clayey soils +
non-pustule-based +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
urceolate;hemispheric;urceolate;hemispheric;campanulate;obconic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
petiolate +  and sessile +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
1 +  and 5 +
linear +  and setiform +
Flowering Apr–Nov. +
stipitate-glandular +
3 +  and 35 +
toothed +  and entire +
alternate +  and opposite +
clavate +  and obcompressed +
setulose +  and glabrous +
flat;convex +
1 +  and 15 +
laciniate +, fringed +, fimbriate +, subulate +, setiform +, quadrate +, oblong +, linear +, lanceolate +  and lance-linear +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Deinandra arida +
Deinandra +
species +
cylindric +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +