Inflorescences in sessile corymbs
of axillary triads, 1 per axil, 4-5 cm in length, with 3-4 pairs of triads per inflorescence, axis of inflorescence angular, bracts ovate.
It is readily distinguished from those species, and from all other species of Heteropterys, by the following combination of characters: small nearly glabrous leaves with large glands on the abaxial surface (not on the margin), epipetiolar stipules, umbels or corymbs
of 4-6 flowers, well-developed peduncles with the bracteoles borne near the base, and tiny greenish petals.
Description: Clustered flowers in dense terminal compound corymbs
; available in pink, purple, blue, and white.
Nevertheless I succeeded in finding it about eight miles west of the Falls; touched it and smelled it, and secured a lingering corymb
of flowers for my herbarium.
FLOWER DESCRIPTION: White, 1/4" in multi-flower, rounded corymbs
. VERY SHOWY.
FLOWER DESCRIPTION: White, tiny, in 2" to 3" clusters (corymbs
FLOWER DESCRIPTION: White, tiny, in 4" to 5" clusters (corymbs
FLOWER DESCRIPTION: White, 1/2" across, 20 stamens, anthers pink, borne in multi-flower corymbs
in mid-spring, later than the other Hawthorns.
FLOWER DESCRIPTION: Greenish in corymbs
; NOT ORNAMENTAL.
FLOWER DESCRIPTION: White, 1/2" in small corymbs
. 5-petaled with showy stamens.
FLOWER DESCRIPTION: Yellow to greenish-yellow, 1/2", appearing in small corymbs
, mostly monoecious and perfect, appearing in early spring before the leaves.
FLOWER DESCRIPTION: Greenish-yellow, 1/2" in small, pendulous corymbs
, appearing in spring before the leaves; NOT GREATLY NOTICEABLE.