Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit 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]

ESCOBARIA

BEEHIVE CACTUS


Stems 1–200, generally in ± 50 cm clumps, each 2–15 cm, 2–15 cm diam, ± depressed to cylindric; ribs inconspicuous; tubercles grooved on upper surface from areole to base; central spines straight, ± following tubercle axis; radial spines wide-spreading ± in 1 plane from tubercle tip
Flower 1–3(6) cm diam; outer perianth parts ciliate
Fruit becoming dry, spheric to club-shaped, red or green; perianth persistent
Seed reniform, black or brown, pitted
Species in genus: 16 species: w US, Mex
Etymology: (R. & N. Escobar, Mexico)
Reference: [Taylor 1986 Cact Succ J Gr Brit 4:36–44]

Native

E. vivipara (Nutt.) Buxb.


Stem 2–15 cm, 2–15 cm diam; tubercles 6–9 mm; spines dense, central spines 3–12, white, tip darker; radial spines 12–40, 9–25 mm, straight, white
Flower 2.5–5 cm diam, straw-yellow, yellow-green, pink, magenta, to purplish
Fruit 12–25 mm, elliptic in outline, green, sometimes with a few scales
Ecology: Sandy to rocky soils
Elevation: 75–2700 m.
Bioregional distribution: Desert
Distribution outside California: to Utah, Arizona, Mexico
Synonyms: Coryphantha v. (Nutt.) Britton & Rose; Mammillaria v. (Nutt.) Haw

Native

var. deserti (Engelm.) D.R. Hunt


Stems 1–few, 7–15 cm, 7–9 cm diam, cylindric to ovoid; central spines 4–6; radial spines 12–20
Flower 2–3 cm diam, straw-yellow, yellow-green, or pink
Ecology: Limestone soils
Elevation: 1000–2400 m.
Bioregional distribution: Desert Mountains (e San Bernardino Co.)
Distribution outside California: to sw Utah, nw Arizona
Flowering time: Apr–May
Synonyms: Coryphantha d. (Engelm.) Britton & Rose; Mammillaria d. Engelm
Horticultural information: DRN, DRY; DFCLT.

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bioregional map for ESCOBARIA%20vivipara%20var.%20deserti being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Escobaria vivipara var. deserti
Retrieve dichotomous key for Escobaria
Overlay Consortium of California Herbaria specimen data by county on this map
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