Sunday, March 20, 2016

Ferocactus cylindraceus (California Barrel Cactus)

 4/3/11 Shavers Valley, E. Riverside County, CA

 4/3/11 Shavers Valley

4/3/11 Shavers Valley

3/4/17 Shaver's Valley

 12/10/05 Shavers Valley


COMMON NAME: California Barrel Cactus

SPECIESFerocactus cylindraceus

FAMILY: Cactaceae (Cactus Family)


LOCATION: Shavers Valley, Riverside County, CA


Treatment from The Jepson Manual (1993):

Stem 10–30 dm, generally taller than wide, spheric or columnar; ribs 18–27; spines 10–18, erect and spreading, longest recurved, generally with some red, becoming gray

Flower: perianth parts yellow with red base; ovary 9–12 mm, scales fringed, style 12–20 mm

Fruit yellow

Seed 1–3 mm

Ecology: UNCOMMON. Gravelly, rocky, or sandy areas

Elevation: 60–1500 m.  

Bioregional distribution: Desert (especially e Mojave Desert, w Sonoran Desert) 

Distribution outside California: to Utah, Mexico

Synonyms: Echinocactus c. Engelm.; F. acanthodes (Lem.) Britton & Rose misapplied (rejected name) 
Threatened by collecting; monitoring needed.

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