Echinocereus species

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Scientific Name Echinocereus dasyacanthus (Echinocereus pectinatus var. neomexicanus) USDA PLANTS Symbol
Common Name Texas Rainbow Cactus, Spiny Hedgehog Cactus ITIS Taxonomic Serial No.
Family Cactaceae (Cactus) SEINet Reference
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Description Habitat: Desert habitat; scrubland, grassy plains, canyon sides and limestone terraces, up to 5,000 feet; in Texas, found primarily in Big Bend.
Plant: Single, sometimes branching stems up to 12 inches tall with 15 to 22 narrow/shallow ribs; annual growth increments marked (often vaguely) by rings of spines with contrasting colors.
Spines: Obscuring stem; vertical central spines 3 or 7 to 9, about 1/4-inch long; radial spines 18 to 22, 1/4 to 1/2 inch long, pale brown or pink.
Inflorescence: Usually yellow flowers, but can range to rose-pink and magenta, 3 to 5 inches across with dark green stigma lobes and yellow anthers in the center; long, pointed petals, outer sometimes tinged with magenta on the outside, inner streaked with green on the inside; green petal base.
Bloom Period: March to May.
References: Echinocereus pectinatus var. neomexicanus in "Manual of the Vascular Plants of Texas" by Correll and Johnston, Cactus Art, and
Texas Status
Scientific Name Echinocereus viridiflorus ssp. cylindricus USDA PLANTS Symbol
Common Name Nylon Hedgehog Cactus ITIS Taxonomic Serial No.
Family Cactaceae (Cactus) Wildflower Center Ref.
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Description Habitat: Desert environments; rocky to sandy soils in far West Texas and southern New Mexico.
Plant: Cylindrical or barrel-shaped stems 4 to 10 inches tall, 2 to 3 inches across; 10 to 14 ribs. Usually solitary and unbranched; not growing in clumps.
Spines: Many spines, reddish-brown, white or pale-gray; radial spines about 3/8-inch long.
Inflorescence: Small yellowish-green to dark-red or brownish flowers around sides of stem, funnel-shaped and often not fully opening; 3/4 to 1 inch across; yellow-green anthers; green stigma lobes.
Bloom Period: April to May.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Cacti of the Trans-Pecos & Adjacent Areas" by Powell and Weeden, and Cactus Art.
Texas Status

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© Tom Lebsack 2019