Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

CACTACEAE

CACTUS FAMILY

Edward F. Anderson (except Opuntia)

Perennial, shrub, tree, generally fleshy
Stem cylindric, spheric, or flat; surface smooth, tubercled, or ribbed (fluted); nodal areoles bear flowers, generally bear spines from center ("central spines") and margin ("radial spines") (Opuntia areoles bear small, barbed, deciduous bristles sometimes called glochids, generally also bear spines)
Leaf generally 0
Flower generally solitary, bisexual, sessile, ± radial; perianth parts generally many, grading from scale-like to petal-like; stamens many; ovary appearing inferior, ± submerged in stem, so generally with areoles on surface, style 1, stigma lobes generally many
Fruit generally fleshy, generally indehiscent, spiny, scaly, or smooth
Seeds many
Genera in family: 93 genera, ± 2000 species: especially Am deserts; many cultivated
Etymology: (Greek: thorny plant)
Reference: [Benson 1982 Cacti of US & Can; Hunt & Taylor eds 1990 Bradleya 8:85–107]

FEROCACTUS

BARREL CACTUS, VISNAGA


Stem generally 1, < 3 m, 20–35 cm diam, depressed-spheric to columnar; ribs 15–27; tubercles inconspicuous; spines dense
Flower 3–6 cm diam; tube poorly developed; ring of hairs separating perianth and stamens; ovary densely scaly
Fruit 1–2 cm diam, scaly, generally yellow, opening by a pore near base
Seed 1.5–3 mm, black, pitted; scar basal
Species in genus: 23 species: sw US, Mex
Etymology: (Latin: fierce cactus)
Reference: [Taylor 1984 Bradleya 2:19–38]

Native

F. viridescens (Torr. & A. Gray) Britton & Rose

COAST BARREL CACTUS


Stem 1.5–3 dm, generally wider than tall, depressed-spheric to cylindric; ribs 13–20; spines 14–24, generally spreading, longest slightly curved, red, becoming ± gray or yellow
Flower: perianth parts pink, green, or yellow; ovary 5–7 mm, scales fringed-dentate, style 6–9 mm
Fruit yellow to reddish
Seed 1–2 mm
Chromosomes: 2n=22
Ecology: UNCOMMON. Sandy to rocky areas
Elevation: 10–150 m.
Bioregional distribution: South Coast (San Diego Co.)
Distribution outside California: Baja California
Threatened by urbanization, off road vehicles, collecting
Horticultural information: In cultivation.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for FEROCACTUS%20viridescens being generated
 


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