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Bransford, W.D. and Dolphia
Platystemon californicus Benth.
California creamcups, Creamcups
Synonym(s): Platystemon arizonicus, Platystemon californicus var. ciliatus, Platystemon californicus var. crinitus, Platystemon californicus var. horridulus, Platystemon californicus var. nutans, Platystemon californicus var. ornithopus, Platystemon confinis, Platystemon mohavensis
USDA Symbol: plca5
USDA Native Status: L48 (N)
A soft-haired plant with several stems, each topped with 1 small, bowl-shaped flower resembling a pale yellow or cream buttercup. The delicate, cream-colored, solitary flowers of this 6-12 in. annual are followed by a fruit which has been compared to tiny ears of corn with the husks removed. The flowers are long-stalked from a clump of basal leaves. The stamens are numerous, some of them flattened and petal-like.
This genus consists of only one species, within which there are some races with nearly white petals, others with yellow petals, and still others with cream petals that are yellow at the base.
Plant CharacteristicsDuration: Annual Habit: Herb Leaf Complexity: Simple Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: Mar , Apr , May
, UT Native Distribution:
Desert areas of AZ,
& s. CA Native Habitat:
Open fields, sandy places & moist ground along streams; 1500 to 4500 ft.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Moist
Soil Description: Moist but well-drained soils.
Conditions Comments: Not Available
PropagationDescription: Sow seeds in spring.
Seed Collection: Not Available
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Record Last Modified: 2007-08-19
Research By: TWC Staff