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FNA | Family List | FNA Vol. 5 | Polygonaceae | Acanthoscyphus

1. Acanthoscyphus parishii (Parry) Small, Bull. Torrey Bot. Club. 25: 53. 1898.

Oxytheca parishii Parry, Proc. Davenport Acad. Nat. Sci. 3: 176. 1882

Plants (0.5-)1-6 × 0.5-4 dm. Leaf blades 1-7 × 0.5-2 cm. Inflores-cences 1-5 dm; bracts 1-4(-10) × 0.5-3 mm, awns 0.2-1.5 mm. Peduncles (0.3-)1-5(-7.5) cm. Involucres 1.5-2 mm, awns ivory or reddish, 2-5 mm. Flowers: perianth 2-2.5 mm; filaments 2-2.5 mm; anthers 0.3-0.6 mm. Achenes 1.7-2 mm.

Varieties 4 (4 in the flora): s California.


1 Involucral awns 7-16, dark red, 3-4 mm; San Rafael Mountains, Topatopa Mountain, and Mount Pinos, Santa Barbara and Ventura counties, California   1d var. abramsii
+ Involucral awns 4-36, ivory colored, 2-5 mm; San Bernardino and Ventura counties   (2)
       
2 (1) Involucral awns 4(-5), 2-3 mm; ne side of San Bernardino Mountains, San Bernardino County, California   1c var. goodmaniana
+ Involucral awns 7-30(-36), 3-5 mm; se side of e San Bernardino County, and Ventura County, California   (3)
       
3 (2) Involucral awns (10-)13-30(-36); inflorescence bracts triangular, awns 0.2-0.5 mm; Pine Mountain, Ventura County, e to c San Bernardino Mountains, San Bernardino County, California   1a var. parishii
+ Involucral awns 7-10; inflorescence bracts subulate, awns 0.5-1.5 mm; se side of e San Bernardino Mountains, San Bernardino County, California   1b var. cienegensis


 

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