

Raiche's Clarkia (subsp. raichei) Clarkia concinna subsp. raichei subspecies
Raiche's Clarkia (subsp. raichei) is an annual wildflower native to the lower 48 states. A host for pollen-specialist native bees.
More about this plant
Clarkia concinna is a species of wildflower known as red ribbons. It is endemic to California, where it can be found in the low-elevation mountains of the northern part of the state. This is an annual plant with erect, herbaceous stems. The distinctive flowers have four looping sepals of red or dark pink which look like loops of silk ribbon. The longer, pink petals have three lobes which are usually streaked with white. Wikipedia →
Growing & care
USDA PLANTS · TRY- Hardiness
- ≥ zone 11 derived from its U.S. range
- Lifespan
- Annual
Wildlife & pollinators
How pollinator value is scored →❧ Caterpillar hosts ~3 caterpillar species
Clarkia supports ~3 caterpillar species.
Native butterfly & moth caterpillars are the base of the terrestrial food web — most songbirds rear their young almost entirely on them. As a host for native Lepidoptera this is a modest genus.
Recorded feeding on Clarkia in North America, including:
✦ Bees specialist-bee host
Specialist native bees depend on it.
Some native bees are pollen specialists (oligolectic) — they raise young only on pollen from particular plant genera. Clarkia is a recorded specialist-bee host, so losing it can mean losing the bee that relies on it.
Sources for this entry (12) Open & cited
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