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Astragalus vexilliflexus

bent-flowered milk-vetch
Astragalus vexilliflexus
Photo 1. General image of Astragalus vexilliflexus

Description

Astragalus vexilliflexus, commonly known as bent-flowered milk-vetch, is a provincially blue listed flowering plant in BC. Federally it is not listed. It is part of the pea family. It is a dicot with a perennial lifecycle. They are commonly found in meadow habitats.

Astragalus vexilliflexus is a flowering plant that is 10-30 cm long. The leaf shape is lanceolate (long, wider in the middle, shaped like a lance tip), oblanceolate (much longer than wide and with the widest portion near the tip, reversed lanceolate) or elliptic (oval, with a short or no point). Their surface is hairy. Leaves are fused half their length. The stems form is stiff, woody and ascending. The flowers have pea white or yellow pedals or sepals. Flowers are 5-8 mm long. Fruit are red in colour and approximately 6-11 mm long The fruit are hairy. It has a tap root structure.

Their prefered habitat is meadow. Sun exposure is typically full sun. They typically grow in loamy soil. Moisture requirements are moist soil or dry. And the pH requirements are slightly acidic or neutral. It can be found from 500 m to 2000 m in elevation. It can be found in British Columbia, Canada. Astragalus vexilliflexus is found in the engelmann-spruce-subalpine-fir or interior-cedar-hemlock biogeoclimatic zone(s).

ClassificationProtection StatusLocation
Type:
Domain:
Kingdom:Plantaeplant
Phylum/Division:Anthophytaflowering plant
Class/Clade:Dicotyledoneaedicot
Order/Series:Fabales
Family:Fabaceaepea
Genus:Astragalus
Species:Astragalus vexilliflexus
Population:
British Columbia Red Listed Blue Listed Yellow Listed Exotic Listed Invasive Listed Noxious Listed
Species at Risk Act Endangered Least Concern Not Listed
World Status Extinct EW CR EN VU NT Least Concern
Municipalities
BC Biogeoclimatic Subzones Site Series
BC Biogeoclimatic Subzones
BC Biogeoclimatic Zones
BC Forest District
Provinces AB BC NB NL NT NS NU ON PE QC SK
Countries
Continents NA SA EU AS AF AU AN
Identification
Line drawing of Astragalus vexilliflexus

General

Height
Life Cycle
Habit Tufted Creeping Stolon

Leafs

Length
Width
Surface Flat Keeled Smooth Ridged Hairy Pleated Wharted Groved Rough
Leaf Tip
Entire Leaf Shape
Leaf Base
Leaf Attachment
Edge
Arrangement
Thinkness Thin Thick Fleshy

Inflorescence

Length
Width
# (Pedals or Sepal) 0 1 2 3 4 5 6 7 8 many pea irregular
Colour White Pink Purple Blue Green Yellow Orange Red Brown Black

Fruit

Length
Width
Shape Egg Shaped Hairy Silky Smooth Winged
Colour White Pink Purple Blue Green Yellow Orange Red Brown Black

Seeds

Length
Width
Colour White Pink Purple Blue Green Yellow Orange Red Brown Black

Stem

Texture Smooth Ridges Furrows Fissures Plates Peeling Scales Flaking Horizontal Lines Shredding Corky Blocky Hairy Spiny Thorny
Form Creeping Twinning Stiff Soft Woody Erect Ascending
Colour White Pink Purple Blue Green Yellow Orange Red Brown Black

Roots

Type Fibrous Tap Rhizome Fusiform Hairy
Habitat Requirements
Type
Marine Beach Sand Dune Bluff Riparian Stream Bog Fen Marsh Swamp Meadow
Vernal Pools Seasonal Seeps Mountains Mixed Forest Deciduous Forest Conifer Forest Gary Oak Grassland Desert Sagebrush Steppe
Disturbed Urban Rural Old Growth Undisturbed
Sunlight
Full Sun Mix Sun Shade Shade
Moisture
Marine Subtidal Marine Intertidal Brackish Intertidal Freshwater Obligate Freshwater Permanent Freshwater Seasonal Saturated Soil Moist Soil Dry Soil
pH
4 5 6 7 8
Elevation
Sea Level 500 m 1000 m 1500 m 2000 m
Soil
Organic Loam Sand Gravel Rocky

Life History

Age to Bloom12345678910>10
Max Age
BloomJanFebMarAprMayJunJulAugSepOctNovDec
FruitJanFebMarAprMayJunJulAugSepOctNovDec
SeedJanFebMarAprMayJunJulAugSepOctNovDec

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