Sunday, April 23, 2017

Yucca brevifolia (Joshua Tree)

4/3/17 Ricardo Campground, Red Rock Canyon State Park,
Kern County, CA 

4/3/17 Ricardo Campground, Red Rock Canyon State Park,
Kern County, CA


COMMON NAME: Joshua Tree

SPECIES: Yucca brevifolia 

FAMILY: Agavaceae (Agave Family)

LIFE LIST DATE: 4/3/2017

LOCATION: Ricardo Campground, across from site #19, Red Rock Canyon State Park, Kern County, CA

Treatment from Jepson eFlora:

Habit: Plant 1--15 m. 

Stem: erect, above ground, generally branched above, rosettes at tips, well above ground. 

Leaf: 15--35 cm, 0.7--1.5 cm wide, dark green, expanded base 2--4 cm, 4--5 cm wide, +- white, margins minute-serrate, yellow. 

Inflorescence: 3--5 dm, distal generally +- 1/2 exserted from rosettes. 

Flower: erect; perianth 4--7 cm, +- bell-shaped, parts lanceolate to oblong, +- fused at base, cream to +- green; filaments thick; pistil +- 3.5 cm. 

Fruit: capsule, spreading to erect in age, 6--8.5 cm, ellipsoid, dry, spongy, or leathery in youth. 

Ecology: Desert flats, slopes; 

Elevation: 400--2000 m. 

Bioregional Distribution: s SNH (e slope), Teh, e SNE, DMoj; 

Distribution Outside California: to southwestern Utah, western Arizona, southern Nevada. 

Flowering Time: Apr--May 

Note: Growth form variable. 

Synonyms: Yucca brevifolia var. herbertii (J.M. Webber) Munz; Yucca brevifolia var. jaegeriana McKelvey; Yucca jaegeriana (McKelvey) L.W. Lenz 

eFlora Treatment Author: William J. Hess

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