Clarkia unguiculata

Clarkia unguiculata
Conservation status
Secure  (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Onagraceae
Genus:	Clarkia
Species:	C. unguiculata
Binomial name
Clarkia unguiculata Lindl.
Synonyms
Clarkia eiseneana Kellogg Clarkia elegans Douglas Clarkia elegans var. albopura Dreer Oenothera elegans (Lilja) E.H.L.Krause Phaeostoma douglasii Spach Phaeostoma elegans Lilja

Distribution

Clarkia unguiculata is a species of wildflower known by the common name elegant clarkia or mountain garland. The plant was named after Captain William Clark who was part of the Lewis and Clark Expedition. This plant is endemic to California, where it is found in many woodland habitats. It grows along the coastal ranges of Mendocino and San Diego. Clarkia unguiculata can also be found in the Sierran foothills. Specifically, it is common on the forest floor of many oak woodlands, along with typical understory wildflowers that include Calochortus luteus, Cynoglossum grande and Delphinium variegatum. It flowers in the summer and fall and thrives in somewhat neutral soil pH. Commonly found on open slopes or slightly shaded areas. These slopes are below 5000 feet and have dry conditions, where the plant thrives.

Distribution of Clarkia unguiculata in California

Description

C. unguiculata presents a spindly, hairless, waxy stem with a red hue. The species can grow up to 3 ft (0.9 m) tall with a small number of leaves populating the stem. The showy flowers have hairy, fused sepals forming a cup beneath the corolla, and four petals each one to 2.5 cm (1.0 in) long. The paddle-like petals come in shades of pink to reddish to purple and are slender and diamond-shaped or triangular in a raceme formation, in which each flower is connected to the main stalk by a pedicel, a short stem extension. There are eight long stamens, the outer four of which have large red anthers. The stigma protrudes from the flower and can be quite large. Its pistil is a long white structure, this combined with the red stamens allow this flower to be easily identifiable. The base of the stem has the leaves arranged in an opposite formation, however further up the stem the leaf arrangement becomes alternate. Produces a small indehiscent fruit, similar to a nut which hold the many little seeds.

Ecology

Clarkia unguiculata is a simple species as it interacts mainly with its pollinators, these being a variety of bees, butterflies and some bats. The main pollinator is the Hesperapis regularis, a native species of bees found in similar environments to C. unguiculata. This plant has the ability to self-pollinate. The ability to self-pollinate means the species is not heavily reliant on the presence of pollinators like bees or butterflies. Despite having a mutualistic relationship with other species, this flower can persevere by itself if certain conditions are met.

Commercial cultivars

• 
  'Albatross'
• 
  'Firebrand'
• 
  'Gloriosa'
• 
  'Lilac'
• 
  'Tall Double Mix'

Cultivation and Uses

This species can be cultivated in local gardens, requiring dry air and dry soil for it to bloom. It can be grown in any soil condition; sand, loamy or clay soils as long as the plant remains in dry conditions. As a hermaphrodite species, being pollinated by pollinators is very easy and requires less energy from the plant. The species can not be grown in shaded areas, it must be exposed to the sun for majority of the day as it does not do well in cold conditions. If grown correctly, the seed will germinate within 2 weeks and bloom late summer and early fall. Although not typically eaten, some parts of the plant is edible, specifically the seed. The seed can be eaten raw or cooked and grounded into a fine powder.

External links

Media related to Clarkia unguiculata at Wikimedia Commons

• Calphotos photo gallery