Lasthenia glabrata, commonly known as Yellowray Goldfields or Yellow-Ray Lasthenia, is an annual herb that thrives in vernal pools, grasslands, and coastal prairies in California and Northwest Mexico. It typically grows up to 50 cm (19.5 in) tall. The plant has a slender stem with a few pairs of oppositely-arranged, smooth-edged linear leaves, each up to 15 centimeters (5.9 inches) long. Yellowray Goldfields produce solitary or loosely clustered flower heads with 7-15 bright yellow ray florets encircling numerous disc florets, blooming from March to June. The fruit is an achene a few millimeters long, lacking a pappus. The flowers are modest in size but can create a striking display when in mass bloom.

Yellowray Goldfields are valued for their vibrant springtime display and adaptability to various soil conditions. They are often used in wildflower meadows, restoration projects, and as part of pollinator-friendly gardens. This plant is well-suited to xeriscaping due to its tolerance of low water conditions once established. It prefers full sun exposure and can adapt to a range of soil drainage types, from fast to slow. While generally low-maintenance, it can be susceptible to root rot in overly wet conditions. There are no major diseases or pests associated with this species, making it a trouble-free addition to native plant gardens.CC BY-SA 4.0