Pimpinella L.

25. Pimpinella L. View in CoL 1

(Inch Reutera Boiss. , Pancicia Vis. )

Basal leaves usually entire or trisect, sometimes 1- to 3-pinnate; middle cauline usually 2-pinnate, with narrow lobes. Sepals usually minute. Petals white or yellow, rarely pink or purplish, not or slightly emarginate; apex inflexed. Fruit ovoid-oblong to subglobose, laterally compressed, constricted at the commissure. Ridges filiform, sometimes concealed by hairs, setae or tubercles; vittae (2-)3(-4).

1 Petals yellow 2 Lower leaves distinctly 2- to 3-pinnate 3 Plant almost glabrous; fruit 2-2-5 mm, glabrous 4. procumbens 3 Plant greyish-pubescent; fruit 1-5 mm, ±velutinous 1. rigidula 2 Lower leaves 1-pinnate; segments occasionally pinnatisect 4 Leaf-segments 25-60 mm; fruit 3-5-4 mm, ovoid-oblong

2. lutea 4 Leaf-segments 8-30mm; fruit 3 mm, subgl^bose 3. gracilis 1 Petals white, pink or purplish 5 Ovary and fruit quite glabrous 6 Upper leaves palmately divided to base; lobes numerous,

long, setaceous 12. serbica 6 Upper leaves pinnately divided; lobes few 7 Rays 2-7 8 Plant ±hairy; fruit c. 4 mm 11. anisoides 8 Plant glabrous; fruit 5-7 mm 15. bicknellii 7 Rays (5-)10-25 9 Fruit 5-6 mm; ridges narrowly winged 14. siifolia 9 Fruit 2-3-5 mm; ridges unwinged

10 Stem usually sharply angled, hollow; ridges of fruit prominent, whitish 13. major

10 Stem usually terete, nearly or quite solid; ridges of fruit inconspicuous 16. saxifraga 5 Ovary and fruit ± hairy 11 Annual or biennial; stock slender, without fibres or scalelike leaf-bases 12 Rays usually more than 15; fruit with long, patent hairs

7. peregrina 12 Rays 2-15; fruit with short, appressed hairs 13 Fruit 3-5 mm 5. anisum 13 Fruit 1-5 mm 6. eretica 11 Perennial; stock stout, with abundant scale-like leaf-bases 14 Lower leaves 1-pinnate 15 Plant densely white-tomentose; fruit c. 3 mm, oblong

9. pretenderis 15 Plant glabrous to greyish-pubescent; fruit c. 2 mm, ovoid

8. tragium 14 Lower leaves 2- to 3-pinnate 16 Petals glabrous on the back 11. anisoides 16 Petals hairy on the back

17 Leaf-lobes broadly ovate, crenate in upper half 10. villosa

17 Leaf-lobes oblong, incise-serrate or lobed 8. tragium