Oreocomopsis Pimenov & Kljuykov (1996: 2)

Kljuykov, Eugene, Lavrova, Tatiana, Terentieva, Elena, Ukrainskaja, Uliana & Zakharova, Ekaterina, 2023, Phylogeny and taxonomic review of Oreocomopsis with description of a new genus Oreocomoides (Apioideae, Apiaceae), Phytotaxa 630 (1), pp. 1-20 : 7

Oreocomopsis Pimenov & Kljuykov (1996: 2)

Type: O. xizangensis Pimenov et Kljuykov

Perennial polycarpic plant with taproot, erect stems. Leaves bi- or tripinnate, basal primary segments with petiolules; terminal segments ovate or lanceolate in outline, slightly- or almost half-dissected, cauline leaves similar to basal ones, with swollen or narrow sheaths. Bracts long, with long narrow petiolule and pinnate blade with narrow entire or lobed segments; umbel rays slightly unequal, few or up to 50 in number; bracteoles narrow, almost filiform, entire or slightly serrated, exceeding dense spherical umbellules, pedicels flattened, petals dark red or grayish white; calyx teeth inconspicuous, carpophore bifid to the base; stylopodia conical, styles recurved. Fruits ovate, mericarps ovate or ovate-lanceolate, slightly dorsally compressed; ribs winged, marginal ribs wider; commissure narrow; secretory ducts 2–4 between ribs, 4–6 at commissural side; endosperm nearly flat at commissural side. Three species.

Key to Oreocomopsis species

1. Caudex densely covered with brown hard fibrosis remains of petioles of dead leaves .............................................. O. dochenensis

1. Caudex covered with flat, linear, soft few remains of petioles of dead leaves...................................................................................2

2. Stem leaf sheath ovate-lanceolate, swollen (bloated), pedicel length 6–10 mm, style length 0.5–0.7 mm, mericarp length 4.3–4.7 mm, mericarp width 2.3–2.5 mm ................................................................................................................................... O. aromatica

2. Stem leaf sheath narrow lanceolate, pedicel length 10–15 mm, style length 1.2–1.5 mm, mericarp length 6–7.5 mm, mericarp width 4–5 mm .............................................................................................................................................................. O. longiinvolucellata