Key to Myosurus

View taxon page for Myosurus

(For a list of species in Myosurus, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Fruit body not 

compressed 

Flattened side-to-side or front-to-back.

, length ± = width, keel in depression; e DMtns ..... M. cupulatus

1' Fruit body ± compressed laterally, length > width, keel not in depression; CA-FP, GB

2. Inflorescence in fruit < leaves, 

peduncle 

Stalk of an individual flower borne singly, not in an inflorescence, or of an entire inflorescence, or the corresponding structure in fruit; the stalk subtending an involucre (e.g., in Asteraceae, Polygonaceae).

0–0.2 cm ..... M. sessilis

2' Inflorescence in fruit > leaves, peduncle 0.9–13 cm

3. Fruit beak 

erect 

Upright; vertically oriented.

, parallel to fruit surface, 0.05–0.4 mm ..... M. minimus

3' Fruit beak ± 

spreading 

Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.

, diverging from fruit surface, 0.6–1.4 mm ..... M. apetalus

4. Fruit aggregate 4–9 mm; sepal 1-veined, widely scarious-margined ..... var. borealis

4' Fruit aggregate 11–26 mm; sepal 3-veined, narrowly scarious-margined ..... var. montanus

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