West Highland Flora

Smith's Pepperwort


Lepidium heterophyllum

 

Lepidium heterophyllum

Photo Carl Farmer
7 Jul 2004 Uig, Skye
Fruits c 6 mm long

Locally frequent in Argyll, rare further north.  On bare stony ground or seaside turf.

Flower diameter c 3-3.5 mm.  Fruits c 5-7 mm long.

ID: Fruits as shown, with one seed each side of the midrib (visible as bulge) and a broad wing that accounts for about half the surface area of the fruit, with a style that projects beyond the fruit tip.  Field Pennycress has  a similar fruit but with a style much shorter than the notch in which it is housed.

Other features: Has typical white crucifer flowers with 4 petals and 6 stamens.  Upper leaves clasp stem at base with pointed auricles, and may be toothed or not.  Leaves near base have short stalk.  Fruits are on hairy stalks (hairless in Field Pennycress).

 

Lepidium heterophyllum

Photo Carl Farmer
7 Jul 2004 Uig, Skye


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