E-Flora BC: Electronic Atlas of the Flora of British Columbia

Astragalus nutzotinensis Rouss.
Nutzotin milk-vetch (Nutzotin milkvetch)
Fabaceae (Pea family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #84105)

E-Flora BC Static Map
Distribution of Astragalus nutzotinensis
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.



General:
Mat-forming perennial herb from a branching stem-base and taproot; stems few to several, slender, prostrate, 10-40 cm long, minutely appressed-hairy with white and black, unbranched hairs.
Leaves:
Alternate, pinnately compound, 1-7 cm long; leaflets 9 to 15, elliptic to oblong, 2-8 mm long, grey-green, frequently with purplish spots, white appressed-hairy, the margins sometimes inrolled; stipules 3-6 mm long, fused at the base and clasping the stem.
Flowers:
Inflorescence an axillary raceme, on stalks 3-10 cm long, of 1 to 4 pea-like flowers; corollas cream with splashes of pink or purple, 12-18 mm long; calyces bell-shaped, black appressed-hairy to nearly glabrous, the tube 3-4.5 mm long, the teeth triangular to linear, about 1/2 as long as the tube.
Fruits:
Pods, at first straight but becoming curved in a semicircle, 3-5 cm long, minutely black appressed-hairy, 1-chambered, the stalk 4-10 mm long, jointed to the deciduous pod.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic gravelly terraces and outwash, rock outcrops and scree slopes from the montane to alpine zones; infrequent in extreme NW BC; N to AK and YT.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Astragalus nutzotinensis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 1675 1675 1675
Slope Gradient (%) 60 60 60
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
200 200 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 2
Modal Nutrient Regime
Class
Number of field plots
 species was recorded in:
1
Modal BEC Zone Class
BAFA
All BEC Zones (# of stations/zone) species was recorded in: BAFA(1)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References