Mammillaria dioica K.Brandegee

국표에 없다.

Common Names include:
ENGLISH: Strawberry Cactus, California Fishhook Cactus, Fishhook cactus, Strawberry pincusion, Coastal Fishhook Cactus, Nipple Cactus
FRENCH (Français): Cactus framboise
SPANISH (Español): Pitayita
UKRAINIAN (Українська): Мамілярія діоїка, Мамілярія дводомна

 

Description: Mammillaria dioicaSN|916]]SN|916]] is a very spiny cactus often with flowers either all bisexual or all pistillate, a trait unusual for Cactaceae representatives.
Habit: Solitary or with several stems from the base, sometimes branching.
Plant-body: Spheric to long-cylindrical, 4-25 (or occasionally up to 33 cm tall), 3-7 cm in diameter, blue-green, rounded apically, but there is no apical mat of pubescence.
Tubercles: Firm, short cylindrical, without latex.
Axils: Woolly and with 4-15 more or less setose bristles as
long as the tubercles.
Radial spines: 10-22, needle-like, straight, white, or in some the tips rose-colored, purplish, brown or black, 4-10 mm long, spreading
Central spines: 1-4 per areole (sometimes absent), brown to brownish black, needle-like, , stout, 8-15 cm long, the lower one stouter and hooked, upper ones straight, ascending, like the radials,
Flowers: Funnelform yellow to almost white with a pink or purplish midrib, 10-22 mm long, 20-40 cm in diameter, inner perianth-segments, 8 to12, cream to white usually notched at the apex; outer perianth parts entire to minutely fringed; styles white or greenish; stigma-lobes yellowish to green. The flowers usually are imperfectly unisexual, occurring on functionally dioecious plant, but some plants have flowers that are strictly female, with no stamens.
Blooming season: Late winter to late spring.
Fruit: Scarlet, ovoid to clavate, 10-25 mm long, sticking straight out from the stem, sometimes even remaining when a new round of flowers blooms.
Seeds: black, shining, minutely pitted.
Chromosome number: 2n[44]66.
Remarks: The dense covering of spines reduces the interception of solar radiation by the stem surface lowering the risks of overheating the apex during a summer day and of freezing during a winter night.

 

Mammillaria dioica (llifle.com)

 

https://youtu.be/r11ZAEBIJwM?t=5