Echinocereus pectinatus var. bristolii
Saguaroland Bull. 10: 81. 1956
Family
Cactaceae
Genus
Species
Echinocereus pectinatus var. bristolii
Author
(W.T.Marshall) W.T.Marshall
Chinese genus
鹿角柱属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Habit
Plants solitary at first, later forming clumps of 2 or 3 stems (occasionally of as many as 30 individual stems).
Central Spines
1-5 (Usually 3), lower ones longest (8-)10-12(-15) mm long.
Description
Echinocereus bristoliiSN|16478]]SN|21864]] is a compact species very similar in in its general habit to Echinocereus reichenbachiiSN|7575]]SN|7575]], but with much larger flowers and somewhat larger stems covered in thin white spines with dark tips.
Similar Species
It has also been considered conspecific with Echinocereus pseudopectinatusSN|21864]]SN|16478]] a closely related endemic species of adjacent south-eastern Arizona (Cochise County).
Flowers
Large, borne near the stem tips, funnelform, pink, including ovary, 3,8-8,5(-11) cm long, (5,5-)6-10,5(-13) cm in diameter. Receptacular areoles bearing stout spines, perianth parts bright magenta, paler or green near the base.
Blooming Season
Mid- to late-spring
Spines
Whitish or pinkish-white with dark a red tips.
Ribs
15-19(-22), low, acute, somewhat tuberculate.
Stem
Cylindrical, tapered toward the tips, light green, 10-20(-30?) cm long and 5-6 cm in diameter (in cultivation up to 10 cm across), surface totally or partially concealed by spines.
Radial Spines
(7-)15-22(-24), lying against the surface, to 5-10 mm long.
Fruits
Subglobose, somewhat depressed, brownish, opening at the tip.
Areoles
Elliptical about 5 mm long and 5-7 mm apart