Plant Image
Willow Dells Tr - Sue Smith

Yavapai County Native & Naturalized Plants

Lotus mearnsii - Mearn's bird's-foot trefoil

Plant Form: Forb

Family: Fabaceae

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Willow Dells Tr
Sue Smith
Willow Dells Tr
Sue Smith
Max Licher @
Forb Plant Description

Origin: Native   Life Cycle: Perennial
General Desc: Stems can be ascending, declining and/or nearly flat on the ground.
Identification notes: Stipules inconspicuous, yellow flowers, stems not rigid and not twice as long as leave, flower stems that rise above the leave and prostrate stems distinguish this Lotus sp.
Height: 4 to 10 inches


Habitat Description: Appears mostly in grasslands on dry mesas and slopes.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland
Elevation: 3000 - 7000 feet

Flower Characteristics

Color: Yellow     Shape: Irregular in elongated clusters     Tubular: Y     Flowering Period: Mar - Aug
Description: Flowers appear solitary or can be clustered with stalks of flowers arising from one point. Flowers can be much longer than the leaves. Calyx lobes are shorter than the tube. Petals are about 1/2 inch long. Turns from yellow to purple as flower dries.

Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Compound     Leaf Shape: Round or oval     Leaf Margin: Smooth     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves     Spines: N
Leaf Description: Has 3 to 5 leaflets. Leaflets are inversely ovate to lanceolate to over 1/2 inch long. Hairs appear silvery.

Fruit and Seed Characteristics

Fruit Color: Green   
Fruit Type: Pod
Fruit Notes: Pods are 1/2 to 1 inch long with silvery hairs.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 7.0  
Last Updated: May 10, 2017  
Content Questions/Comments: Email Jeff Schalau  
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