Heracleum crenatifolium
Heracleum crenatifolium
Sov
Biennial, 0.7–1.6 m tall, aromatic herb. Stem solitary, 2–3.5 cm diameter below, finely striate-sulcate, glabrous lengthwise. Basal leaves 1–2-pinnate, lamina triangular oblong, at least 40–100 cm long, subglabrous to sparsely pubescent throughout the veins above, more densely pubescent below; primary pinnae 2–4-paired. Terminal leaf 3-lobed to 3-sect. Ultimate lobes of leaves oblong-lanceolate, crenate-dentate to dentate. All leaves with an oblong-lanceolate sheath. Rays 20–50, ± unequal, 4–15 cm in fruiting stage, glabrous. Central umbels sessile or with short peduncle up to 4 cm. Bracts 0. Bracteoles 0–2, lanceolate to filiform. Sepals and petals minute. Petals greenish white. Ovaries adpressed setulose. Stylopodium conical, 0.5–0.7 mm in flower, 0.6–1 mm in fruit. Style 1.5–2 mm in flower, the same length or deciduous in fruit. Mature mericarps obovate-oblong, 8–15 × 6–12 mm, sparsely adpressed-setulose, deeply emarginate, notch depth 1.5–2 mm. Endosperm 3–4.75 × 0.4–1 mm in cross-section, extending up to between dorsal and commissural vittae and separating them from each other, c. 1/3–2/4 of the width of the marginal dorsal vittae are in contact with commissural surface. Commissural pericarp thick here, dorsal vittae never visible in commissural surface. Dorsal vittae 4, broadly linear-clavate, 0.6–1 mm broad, c. ½ to ¾ as long as mericarp. Commissural vittae 2, broadly linear-clavate 0.5–0.7 mm, ¼ as long as mericarp. Flowering time: From May to July.
Endemic.
