Gundlachia triantha
Sida 21: 248. 2004.
Common names: TransPecos goldenshrub
Illustrated
Basionym: Haplopappus trianthus S. F. Blake J. Wash. Acad. Sci. 28: 485. 1938
Synonyms: Ericameria triantha (S. F. Blake) Shinners Xylothamia triantha (S. F. Blake) G. L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 85.
Revision as of 21:00, 5 November 2020 by imported>Volume Importer
Stems terete, finely sulcate, highly branched, bark tan becoming gray, twigs mostly green, minutely ridged, papillate-scabrous. Leaves ascending to spreading, sulcate adaxially, 5–20 × 0.5–1 mm; axillary fascicles sometimes present. Phyllaries 3–6 × 0.8–1.5 mm, mostly chartaceous, midveins enlarged distally, evident as green to brown patches, apices acute. Disc corollas 5–6 mm, tubes glabrous or puberulent, lobes 1–2.5 mm; style branches 2–2.5 mm, appendages 1.2–1.5 mm. Cypselae 3–4 mm, hairy; pappi 4–6 mm. 2n = 18.
Phenology: Flowering late summer–fall (or with adequate rain).
Habitat: Often in gypseous, calcareous, saline, or gravelly soils
Elevation: 700–1500 m
Distribution
Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León).
Discussion
Selected References
None.
Lower Taxa
None.