Friday, April 14, 2017

Atrichoseris platyphylla (Gravel Ghost)

4/3/17 Day use area off CA 190 between Stovepipe Wells and Emigrant,
Death Valley National Park, Inyo County, CA 

4/3/17 DVNP

2/6/05 Wash on north side of Box Canyon Rd. across from Little Box Can Trailhead between Meccacopia Trail & Sheep Hole Oasis Camp, Mecca Hills, E. Riverside County, CA

 3/15/19 Desert Lily Sanctuary, Desert Center, Chuckwalla Valley,
E. Riverside County, CA


COMMON NAME: Gravel Ghost

SPECIES: Atrichoseris plathyphylla

FAMILY: Asteraceae (Sunflower Family)

LIFE LIST DATE: 2/6/2005

LOCATION: Wash on north side of Box Canyon Rd. across road from Little Box Can Trailhead between Meccacopia Trail & Sheep Hole Oasis Campground, Mecca Hills, E. Riverside County, CA

Treatment from Jepson eFlora:

Habit: Annual, 2--18 dm, glabrous; sap milky. 

Stem: erect. 

Leaf: basal and proximal cauline generally flat against soil, sessile or tapering to a short, winged petiole, 3--10 cm, obovate, obtuse, finely dentate, gray-green, often purple-tinged, especially abaxially; cauline few, reduced distally on stem to inconspicuous, triangular scales. 

Inflorescence: heads liguliflorous, 1.5--2.5 cm diam, few to many in an open, +- scapose cyme-like cluster; involucre 6--10 mm; phyllaries in 2--4 series, outer short, triangular to lanceolate, inner 10--15, +- equal; receptacle +- rounded, epaleate. 

Flower: 30--60, fragrant; ligule white, readily withering. 

Fruit: 4--4.5 mm, +- cylindric or broadly club-shaped with 4--5 blunt angles, +- white; pappus 0. 

Ecology: Desert valleys, washes; 

Elevation: < 1600 m. 

Bioregional Distribution: D; 

Distribution Outside California: to Utah, Arizona, northeastern Baja California. 

Flowering Time: Feb--May 

eFlora Treatment Author: David J. Keil & G. Ledyard Stebbins

No comments:

Post a Comment