Difference between revisions of "Glossopetalon pungens"

Brandegee

Bot. Gaz. 27: 445. 1899.

Common names: Dwarf greasebush
Conservation concernEndemic
Synonyms: Forsellesia pungens (Brandegee) A. Heller F. pungens var. glabra Ensign Glossopetalon pungens var. glabrum (Ensign) H. St. John
Treatment appears in FNA Volume 9. Treatment on page 14. Mentioned on page 13.
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|genus=Glossopetalon
 
|genus=Glossopetalon
 
|species=Glossopetalon pungens
 
|species=Glossopetalon pungens

Latest revision as of 22:54, 5 November 2020

Shrubs forming relatively low mounds or mats, 5–20 cm. Stems: branchlets usually ascending, sometimes divaricate, green to yellowish green during 1st year, soon turning yellowish brown, slender, 0.5–1 mm diam.; bark of older branches dark brown to black; tips not or weakly spinescent; glabrous or sparsely to ± densely puberulent. Leaves: stipules absent; petiole base ± persistent, not or only slightly thickened, not darkened or glandular; blade oblanceolate to narrowly elliptic, 6–10 × 3–5 mm, margins thickened, apex acute or short-acuminate, mucronate, mucro 0.6–1.2 mm, glabrous or scabridulous. Inflorescences terminal, usually flowers solitary. Flowers: sepals 5, ovate, 2–3 mm, slightly unequal, tips spinescent; petals 5, narrowly to broadly oblanceolate, 6–8 × 1.5–2.2 mm; stamens 10, in 2 unequal series, longer opposite sepals. Follicles 1(–3), ovoid to broadly ellipsoid, 2.5–4 mm, moderately striate, usually sparsely puberulent, sometimes glabrous.


Phenology: Flowering Apr–Jul.
Habitat: Crevices and ledges of limestone cliffs and outcrops
Elevation: 1300–2400 m

Discussion

Of conservation concern.

Populations of Glossopetalon pungens in the mountains of San Bernardino County, California, tend to occur at lower elevations than do those in Clark, Lincoln, and Nye counties, Nevada. The California plants also have glabrous leaves (the basis of var. glabrum); most of the Nevada plants have densely scabridulous leaves. Both glabrous and hairy plants sometimes have strongly veined leaves that appear somewhat corrugated, at least on herbarium specimens.

Selected References

None.

Lower Taxa

None.
... more about "Glossopetalon pungens"
Charles T. Mason Jr.† +  and George Yatskievych +
Brandegee +
Dwarf greasebush +
Calif. +  and Nev. +
1300–2400 m +
Crevices and ledges of limestone cliffs and outcrops +
Flowering Apr–Jul. +
Conservation concern +  and Endemic +
Forsellesia pungens +, F. pungens var. glabra +  and Glossopetalon pungens var. glabrum +
Glossopetalon pungens +
Glossopetalon +
species +