Clarkia exilis is a small herbaceous annual plant of western North America. It is an uncommon species in the evening primrose family known by the common names Kern River clarkia and slender clarkia. C. exilis is an annual herb producing a slender, erect stem often exceeding half a meter in height. The bright green leaves are lance-shaped to narrowly oval, and hairless. The top of the stem is occupied by the inflorescence, with open flowers and deflexed buds towards the tip of the stem. Each of the four petals has a narrow claw and diamond-shaped limb. The entire petal is up to 1. 5 centimeters long and white or soft purple or pink, sometimes with a purple spot. The fruit is a capsule up to 3 centimeters long and about 2 millimeters wide that may contain from a few to 80 seeds. Description from Calscape
Home > Plant Guide >
Scientific Name
Family
Garden Type
Wildlife
Native Plant Region
Light needs
Water Needs
Plant Type
Bloom Color(s)
Height
Width
Months in Bloom
Safe Beneath Power Lines?
We’d like to maintain accurate and robust plant listings. If you see information that is not correct or that could be added to improve the listing, please let us know. Or if you’d like to suggest a plant to add to our plant guide, you can use this form do so. Thank you!
Take a virtual tour of Capitol hill with naturalist and author David B. Williams and gain a new appreciation of the nature of the city and its wild side.
Learn about container gardening with shrubs, trees, herbs, veggies, perennials, and annuals. A special focus will be on plantings that provide pollinators with food and that encourage bird habitat.
Gardeners can check out seeds for free from the library to plant. Then after harvest, gardeners bring seeds back to the library for others to enjoy in future growing seasons.
The plants, animals, fungi, microbes, and other natural features that make up “urban habitat” are important to the character, function, and livability of cities.
Do you want to plant a tree, create butterfly habitat, or start a vegetable garden but don’t have a yard? Learn how planting strips are a great place to start your own garden!
Protecting the trees and other vegetation that what we currently have is perhaps the most important way to ensure biodiversity in cities.
Nature of Your Neighborhood is a collaboration between Birds Connect Seattle, the Capitol Hill EcoDistrict, and the Seattle Bird Conservation Partnership. Our goal is to foster relationships between the people and the nature of their neighborhoods.