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Thermopsis divaricarpa - spreadfruit goldenbanner

Scientific Family
Fabaceae
Synonyms
Thermopsis rhombifolia var. divaricarpa,Thermopsis montana var. divaricarpa, Thermopsis pinetorum
Other common names
Golden banner
pine goldenpea
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Perennial
Similar species
Thermopsis spp.
Height
To 39 inches
Riparian
No

Stems woody below, or from woody crown; erect, perennial stems are less than 39 inches tall, smooth or sparsely hairy.

Rhizomatous, perennial with yellow pea-like flowers in terminal spike-like short-branched flower heads; seed pods are spreading and slightly curved; stipules (leafy growths) at the base of the leaf stalks are relatively wide, and oval in outline.

Habitat

Mostly wooded areas in sunny or partly shaded locations in pine forests.

Plant Community
Montane Conifer Forest
Low elevation
6000
High elevation
9500

Flower Characteristics

Flower bracts 5-lobed, smooth; flowers have a typical pea-shape, petals yellow, banner petal broadly rounded, wing petals narrow lobe-shaped to lance-shaped and broadest above the middle and tapering toward the base.

Flower color
Yellow or orange
Flower shape
Irregular
Tubular
Yes
First bloom month
April
Last bloom month
July
Flower clusters
Elongated

Leaf and Stem Characteristics

Leaves trifoliate, leaflets often folded slightly upwards and have very fine hairs along the edge.

Leaf type
Compound
Leaf color
Green
Leaf shape
Round or oval
Leaf margin
Smooth
Leaf attachment
Alternate
Leaves clasp
No
Leaf hairs
None
Spines
No

Fruit and Seed Characteristics

Pods have one compartment, are smooth to hairy and slightly curved. They open at maturity with typically 3 to 10 seeds. Seed pods are slightly curved, hairy and terminate in a curved spike.

Fruit type
Pod
Fruit color
Green

Oval to rounded in outline, seed surface smooth, seeds olive, brown, or black.