Pyrrocoma uniflora var. gossypina

(Greene) Kartesz & Gandhi

Phytologia 71: 61. 1991.

EndemicConservation concern
Basionym: Pyrrocoma gossypina Greene Pittonia 3: 23. 1896
Synonyms: Haplopappus uniflorus subsp. gossypinus (Greene) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 424. Mentioned on page 423.

Plants 10–30 cm. Stems pale or reddish, tufted-tomentose, glabrescent. Leaves: basal blades lanceolate, 20–80 × 10–20 mm, margins entire to rigidly dentate; faces tufted-tomentose. Heads 1–5, usually in racemiform arrays, pedunculate, sometimes borne singly, terminal. Involucres 10–13 × 18–20 mm. Phyllaries loosely appressed, unequal.


Phenology: Flowering Jul–Sep.
Habitat: Dry or moist alkaline meadows, open pine forests
Elevation: 1600–2300 m

Discussion

Of conservation concern.

Variety gossypina is known only from the San Bernardino Mountains, southern California. It is recognized by its tufted-tomentose pubescence, long involucres, unequal phyllaries, and geographic isolation.

Selected References

None.

Lower Taxa

None.
David J. Bogler +
(Greene) Kartesz & Gandhi +
Pyrrocoma gossypina +
1600–2300 m +
Dry or moist alkaline meadows, open pine forests +
Flowering Jul–Sep. +
Endemic +  and Conservation concern +
Haplopappus uniflorus subsp. gossypinus +
Pyrrocoma uniflora var. gossypina +
Pyrrocoma uniflora +
variety +