Dichelostemma capitatum
| Dichelostemma capitatum | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asparagaceae |
| Subfamily: | Brodiaeoideae |
| Genus: | Dichelostemma |
| Species: | D. capitatum |
| Binomial name | |
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Dichelostemma capitatum (Benth.) Alph.Wood |
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| Synonyms | |
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Brodiaea lacuna-vernalis |
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Brodiaea lacuna-vernalis
Brodiaea pulchella
Dichelostemma pulchellum
Dichelostemma capitatum (syn. D. pulchellum), called blue dicks, purplehead and brodiaea (alternate spellings, brodiea, brodeia) occur in Arizona, California, Oregon, Utah, New Mexico, and northern Mexico.
Dichelostemma capitatum is an herbaceous perennial growing from an underground corm to a height of as much as 60 cm. It has 2–3 leaves which are 10–40 cm long. The inflorescence is head- or umbel-like, and dense. It usually contains 2 to 15 flowers, which have a blue, blue-purple, pink-purple, or white perianth. The flower tube is 3–12 mm and is narrowly cylindrical to campanulate. Flowers have six fertile stamens, deeply notched, lanceolate, white, angled inward, slightly reflexed at tip, with outer filaments wider at the base. It has a twisted and fleshy peduncle, a set of membranous, petal-like stamen appendages around the anthers, and angular black seeds. It reproduces from seed and vegetative means in the form of cormlets. The cormlets are attached to the parent corm by stolons and are sessile, produced in the axils of the old leaf bases on the mature corm. Plants thrive in open disturbed environments, and are a common post-fire succession species in chaparral.
Dichelostemma capitatum occurs from sea level up to 2,300 meters. It inhabits a wide variety of plant communities, including vernal pools, valley grassland, scrub, coniferous forests, and open woodlands. It seems not to colonize after fire by seed, but rather by cormlets. After fire, plants are exposed to unshaded environments with little brush competition, and vigorously flower in open environments with increased soil nutrients.
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Wikipedia