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Lotus plebeius - New Mexico bird's-foot trefoil

Scientific Family
Fabaceae
Synonyms
Hosackia puberula var. nana, Lotus longebracteatus, L. neomexicanus , L. oroboides var. nanus and more see SEINET.
Other common names
common birdsfoot trefoil
long-bract bird's-foot-trefoil
longbrack trefoil
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Perennial
Similar species
Lotus wrightii
Height
6 to 14 inches
Riparian
No

Perennial herb from a woody taproot, has several stems from the base that are upright or laying flat with many branches. Herbage covered with white, straight, flat hairs. Yellow flowers in clusters of 3 to 12 flowers which are pea-flower shaped.

Many stemmed perennial; mostly appressed hairs throughout; nearly stemless leaves with 3 to 5 leaflets; stalks below inflorescences longer than leaves; fruit pods less than 1/8 inch wide. L. wrightii which is similar has truly palmate leaves.

Habitat

Found on slopes, mesas, pinyon-juniper woodlands, and ponderosa pine forests, in sandy to gravelly soils.

Plant Community
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Low elevation
2500
High elevation
7500

Flower Characteristics

Flowers in clusters of 3 to 12 on stalks from leaf axils, pea-flower shaped, 1/2 inch long; 5 sepals fused into a tube 1/8 inch long, topped with 5 linear lance-like teeth, 1/16 to 1/3 inch long; petals 1/2 inch long, the banner sometimes tinged red.

Flower color
Yellow
Flower shape
Irregular
Tubular
Yes
First bloom month
June
Last bloom month
September
Flower clusters
Rounded

Leaf and Stem Characteristics

3 to 5 leaflets per leaf with almost no stem; leaflets are lance-like, 1/8 to 1 inch long and 1/16 to 1/4 inch wide.

Leaf type
Compound
Leaf color
Green
Leaf shape
Narrow
Leaf margin
Smooth
Leaf attachment
Alternate
Leaves clasp
No
Leaf hairs
Leaves & stems
Spines
No

Fruit and Seed Characteristics

Pods linear, 3/4 to 1 inch long and 1/4 inch wide, straight or slightly curved near the tip, sparsely covered with white, straight, flat hairs; containing 6 to 12 seeds.

Fruit type
Pod