U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
 
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Contra Costa Goldfields
(Lasthenia conjugens )
Asteraceae

Contra Costa Goldfields; Photo Copyright 1998 John Game
Photo Copyright 1998 John Game

Description: Annual herb 16 inches (4dm) tall. Leaves linear, smooth-edged or pinnately lobed, and less than  3 1/8 inches (8cm) long. Inflorescence are radiate heads with hairy involucres, 1/4 - 3/8 inches (6-10mm) long, and 12-18 phyllaries (bracts). Heads contain 6-13 ray flowers with yellow petals, 1/4 - 3/8 inches (5-10mm) long, and many 5-lobed, yellow disk flowers. Fruit are club-shaped, less than 1/16 inch (1.5mm) long. 

Distribution:

Habitat: Vernal pools. Elevation 3.2 - 1504 feet.

Flowering Period: Blooms March - June.

Similar Plants:

Status: Federal Endangered, California Native Plant Society List 1B

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Field Office: Hollister

 
Last updated: 08-05-2010