Northern Prairie Wildlife Research Center
Northeast Wetland Flora
Field Office Guide to Plant Species
Tall Hairy Groovebur
Agrimonia gryposepala Wallr.
- Family: Rose (Rosaceae)
- Flowering: June-August
- Field Marks: The way this Agrimonia differs from others is by its glandular-hairy stalks in
the inflorescence and the large fruits 1/3-1/2 inch long.
- Habitat: Woods, thickets.
- Habit: Perennial herb with fibrous roots.
- Stems: Upright, branched, with spreading hairs, some of them gland-tipped, up to 6 feet tall.
- Leaves: Alternate, pinnately compound, with numerous small leaf segments mixed in among the longer 5-9 leaflets, the larger leaflets obovate to oblong-lanceolate, pointed at the tip, tapering or rounded at the base, coarsely toothed, smooth on the lower surface except on the hairy veins, usually glandular-dotted, up to 2 1/2 inches long.
- Flowers: Several in slender, spike-like racemes, the stalks of the racemes glandular-hairy; each flower 1/3-1/2 inch across.
- Sepals: 5, united below to form a turban-shaped cup, green, minutely bristly.
- Petals: 5, free from each other, yellow, 1/6-1/4 inch long.
- Stamens: 5-15.
- Pistils: Ovary inferior.
- Fruits: Turban-shaped, hanging downward, about 1/6 inch long, the rim of the fruit covered with hooked bristles.
Return to Species List -- Group 6
Next Species -- Beaked Groovebur (Agrimonia rostellata)