Saturday, March 30, 2019

Uropappus lindleyi (Silver Puffs)

 3/23/19 Harford Springs Reserve, Gavilan Hills, Riverside County, CA


COMMON NAME: Silver Puffs

SPECIES: Uropappus lindleyi

FAMILY: Asteraceae (Sunflower Family)


LOCATION: Harford Springs Reserve, Gavilan Hills, Riverside County, CA

Treatment from Jepson eFlora:

Habit: Annual 5--70 cm, leafy stems erect or plants scapose; sap milky. 

Leaf: 5--30 cm, all basal or some cauline, alternate, +- linear, long-tapered, entire to narrowly lobed, +- soft-hairy, especially petiole base. 

Inflorescence: heads liguliflorous, 1 on always-erect peduncle; involucre 10--40 mm, narrowly bell-shaped in flower, cylindric to ovoid in fruit, glabrous; phyllaries in 3--4 series, narrowly lanceolate, reflexed in fruit; receptacle flat or convex, epaleate, shallowly pitted. 

Flower: 5--many; ligules 2--10 mm, equaling or slightly exceeding involucre, pale yellow, abaxially often +- red, readily withering. 

Fruit: 7--17 mm, slender-fusiform, tapered to beak-like tip in California, 10-ribbed, generally +- black, scabrous; pappus scales 5, 5--15 mm, deciduous, smooth, silvery, bristle-tip 4--6 mm, slender, smooth, from notched scale tip. 

Ecology: Common. Open grassland, woodland, chaparral, deserts, generally in loose soils; Elevation: < 2300 m. 

Bioregional Distribution: CA (exc NCo); 

Distribution Outside California: to British Columbia, Idaho, Utah, western Texas, northern Mexico. 

Flowering Time: Mar--May 

Synonyms: Microseris lindleyi (DC.) A. Gray; Microseris linearifolia (Nutt.) Sch. Bip.

Jepson eFlora Author: Kenton L. Chambers

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