Northern Prairie Wildlife Research Center
Clammy Hedge-hyssop (Gratiola neglecta)
- Family: Figwort (Scrophulariaceae)
- Flowering: May-October.
- Field Marks: The distinguishing features of the hedge-hyssops are the low growth form, the opposite leaves, and the small flowers with 2 tiny bracts near the calyx, and 2 stamens. The clammy hedge-hyssop differs from other hedge-hyssops by its tapering leaf bases and slender flower stalks at least 1/2 inch long.
- Habitat: Marshes, wet woods, roadside ditches, along streams, ponds, and lakes, wet fields.
- Habit: Annual herb with fibrous roots.
- Stems: Erect or spreading, branched or unbranched, hairy, less than 1 foot long.
- Leaves: Opposite, simple, lanceolate to oblanceolate, short-pointed at the tip, tapering to the base, somewhat hairy, up to 1 1/2 inches long.
- Flowers: Solitary in the axils of the leaves, white or yellowish, up to 1/2 inch long, on slender stalks at least 1/2 inch long.
- Sepals: 5, free or nearly so, green.
- Petals: 5, united below into a yellowish tube, the lobes white.
- Stamens: 2.
- Pistils: Ovary superior.
- Fruits: Capsules ovoid, up to 1/4 inch long, containing many seeds.
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