Flora of North America species comparison

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Oxytropis campestris var. johannensis
Photo is of parent taxon

johann's locoweed, oxytrope du fleuve saint-jean
Habit Plants 4–86 cm, herbage silky-pilose, hairs subappressed, often becoming green and glabrate.
Leaves

4–26 cm;

stipules glabrous or sparsely pilose abaxially, margins ciliate;

leaflets 15–29, opposite or subopposite, blades 3–29 mm.
Racemes

7–12(–14)-flowered.
Peduncles

erect, (4–)8–36 cm, axis 1.5–9(–11) cm in fruit.
Corollas

usually purple, rarely white, 12–18.5 mm.
Calyces

tube 5–6 mm, lobes usually lanceolate, (1–)2–3 mm.
Legumes

14–27 × 5–9 mm.
2n

= 48.

Oxytropis campestris var. johannensis
Phenology Flowering summer.
Habitat Rock outcrops, islands, gravel bars.
Elevation 10–400 m. (0–1300 ft.)
Distribution
from FNA
ME; NB; NF; NS; ON; QC
[BONAP county map]
Discussion

Plants of var. johannensis from south of James Bay, Ontario, have fasciculate leaves and relatively short fruits; the latter characteristic indicates a close relationship to var. chartacea. Some specimens appear to be transitional to Oxytropis splendens. The Pan-Arctic Flora (http://panarcticflora.org/) treats var. johannensis as a synonym of O. terrae-novae.

Variety johannensis is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis campestris
Sibling taxa
O. campestris var. chartacea, O. campestris var. columbiana, O. campestris var. cusickii, O. campestris var. davisii, O. campestris var. dispar, O. campestris var. jordalii, O. campestris var. minor, O. campestris var. roaldii, O. campestris var. spicata, O. campestris var. varians, O. campestris var. wanapum
Synonyms Aragallus campestris var. johannensis, A. johannensis, Astragalus campestris var. johannensis, O. campestris subsp. johannensis, O. johannensis
Name authority Fernald: Rhodora 1: 88. (1899)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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