UW Burke Herbarium species comparison

Leaves cauline, basal ones not persistent, commonly congested; subsessile to sessile;

blade oblong to lanceolate, 30-70 mm long and 10-22 mm broad, pinnate venation, base rounded, margins toothed to finely toothed, apex acute, surfaces hairy as stems.

Leaves opposite, deltoid-ovate to sub-cordate, dentate or denticulate, sub-palmate or nearly pinnately veined, the blade 1-3 cm. long, the petiole shorter.

Axillary flowers 4-10, emerging from nodes at mid- to ends of stems; fruiting pedicels generally 22-50 mm, hairy as stems;

calyx winged, cylindric-campanulate, barely inflated, 10-12 mm, villous with gland-tipped hairs, lobes spreading noticeably, strongly unequal, linear-lanceolate to slender-triangular, 5-9 mm, apex long acuminate-apiculate;

corollas yellow, throat faintly marked with blackish-brownish lines, symmetric almost radially or weakly bilaterally, nearly regular or weakly bilabiate;

tube-throat slenderly bell-shaped, 15-18 mm, protruding beyond calyx margin;

lobe apex rounded;

styles glabrous;

anthers not protruding, covered with fine hairs that are stiff to slightly rigid.

Flowers solitary in the leaf axils on long pedicels;

calyx 4-8 mm. long, the 5 acute, equal teeth less than 2 mm. long;

corolla yellow with some red dots, 6-14 mm. long, only slightly bilabiate, the lips about equal and only slightly flaring, the throat with pubescence on the lower side;

stamens 4.

Capsules 6-8 mm, included.

Capsule.