Flower, Weed
showy penstemon
True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.
Irregular rectangular to triangular
Black
Rough and stippled
Margins between flat surfaces are sometimes ridged.
There is no shape that can completely describe the seed of this species.
Not listed
Not included
Plantaginaceae
Penstemon spectabilis Thurb. ex A. Gray
