Mammillaria dasyacantha
Proc. Amer. Acad. Arts 3: 268 (-269). 1856 not (D. R. Hunt) Reppenhagen 1990 (see M. laui subsp. dasyacantha);
Family
Cactaceae
Genus
Species
Mammillaria dasyacantha
Author
Engelm.
Chinese genus
乳突球属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Description
Escobaria dasyacanthaSN|10222]]SN|10182]] is small nipple Cactus forming solitary (or rarely with 2-5 branches) condensed upright cylinders densely covered with white spines with darker tip. Two subspecies are recognized, the nominate form and subsp. chaffeyi (Britton & Rose) N.P.Taylor.
Roots
Diffuse or whit a short taproot.
Tubercles
7-8 long, 3-5 mm in diameter, moderately soft.
Flowers
Nearly apical, 15-30 mm, outer tepals pinkish conspicuously fringed with darker pinkish to brown or brownish green midstripes. Stigma lobes are greenish.
Blooming Season
March-July.
Spines
Pure white to brown bristly with pink, red-brown to nearly black tips 26-42 per areole; radial spines 21-31 per areole 6-10 mm long; subcentral spines several, appressed; central spines (4-9 per areole, spreading, straight, longest spines 12-17 mm.
Stem
Spheric, becoming short cylindric in age, 4.5-15 tall 3-6 cm in diameter.
Fruits
Bright red, club-shaped, cylindric, or narrowly ellipsoid, 13-35mm long not very succulent; floral remnant strongly persistent.