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DESCRIPTION:
Yellow sweetclover, a biennial broadleaf, occurs in open, disturbed areas
throughout the state. Mature, erect plants are 1 to 3 feet (30
-
90 cm) tall with spreading branches. Small, oblong cotyledons (seed leaves) are
light green. The first true leaf is heart-shaped or round
and may have wavy edges. True leaves are fully subdivided and consist of three leaflets. The terminal leaflet has a short stalk. Small, yellow flower clusters are borne at the ends of stalks. One or two-seeded pods have dark,egg-shaped seeds that are irregularly cross-ridged. Use hand weeding to remove plants before seeds are
formed. The seeds are resistant to both soil fumigation and
solarization.
Two other common sweetclovers are Indian sweetclover, M. indica,
and white sweetcover, M. alba.
See UC IPM's Clovers Pest
Note for more information.
Broadleaf ID illustration.
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