Heuchera brevistaminea

Wiggins

Contr. Dudley Herb. 1: 100, plate 8. 1929 ,.

Common names: Laguna Mountains alum-root
Treatment appears in FNA Volume 8. Treatment on page 99. Mentioned on page 87, 100.
Revision as of 22:26, 16 December 2019 by FNA>Volume Importer

Herbs acaulescent; caudex branched. Flowering stems 20–30 cm, sparsely long stipitate-glandular. Leaves: petiole sparsely short to long stipitate-glandular; blade orbiculate or reniform, shallowly 5-lobed, 1.5–4 cm, base shallowly cordate, lobes rounded, margins dentate, apex obtuse, surfaces sparsely long stipitate-glandular on veins abaxially, glabrous or long stipitate-glandular adaxially. Inflorescenses moderately diffuse. Flowers: hypanthium weakly bilaterally symmetric, free 1.5–2.2 mm on adaxial side, deep rose-purple, cylindric, 4–5 mm, short stipitate-glandular proximally, long stipitate-glandular distally; sepals spreading, green- and darker red-tipped, equal, 1.3–1.4 mm, apex rounded; petals spreading, white, broadly oblanceolate, unlobed, 4–5 mm (much longer than sepals), margins entire; stamens included 1 mm; styles included 1–2 mm, 1.5 mm, 0.1+ mm diam. Capsules ovoid, 3 mm, beaks divergent, not papillose. Seeds dark brown, ellipsoid, ca. 0.7 mm.


Phenology: Flowering Jul–Sep.
Habitat: Rocky slopes in montane chaparral, yellow pine forests
Elevation: 1500-1900 m

Discussion

Of conservation concern.

Heuchera brevistaminea occurs in the Laguna Mountains, San Diego County. It closely resembles H. abramsii, H. caespitosa, H. elegans, and H. pulchella.

Selected References

None.

Lower Taxa

None.