OregonFlora species comparison

slender, elongate taproots or irregularly thickened, elongate taproots with an elongate and slender upper portion 1–6 cm.

elongate; slender or irregularly thickened taproots divided into 2–5 elongate and slender roots at base, irregularly thickened taproots with an elongate upper section < 10 cm.

simple, 2–3-branched or multicipital;

basal leaf sheaths from previous years weathering into a sparse thatch of a few; loose fibers or chaffy scales at base of stem or pseudoscape, previous year’s peduncles sometimes persistent in thatch as gray stalks.

simple or 2–3-branched;

basal leaf sheaths from previous years weathering into a sparse thatch of a few loose fibers and chaffy or chartaceous scales at base of pseudoscape.

absent or 10–20 cm; pseudoscapes absent or < 1 cm, obscured by leaf sheaths and thatch.

3–20 cm; lower nodes concealed by leaf sheaths or only upper 5–10 mm visible; pseudoscapes absent or 0.5–2 cm, subterranean.

biternate or 1–3-pinnate, glabrous, glabrate or sparsely puberulent or scaberulose along midnerves and margins, sparsely scabrous or pubescent below and glabrate or pubescent on midnerves above;

primary leaflets ternate or pinnate, 0–6 secondary leaflet pairs along each rachis;

laterals half to subequal to central primary in length;

secondaries pinnate; pinnatifid, ternate or entire;

tertiaries absent; entire; pinnatifid (2–3-lobed), ultimate apical lobes linear, narrowly elliptic, or narrowly oblong, 10–120 × 0.4–12 mm;

tips acute or acuminate, mucronulate or not.

glabrous, thinly glaucous, or sparsely scaberulose or muriculate along leaflet margins and midveins; thin or thick and somewhat fleshy;

primary leaflets pinnate, 2–4 secondary leaflet pairs along each rachis;

laterals at least half central primary in length;

secondaries pinnate or pinnatifid;

tertiaries pinnatifid (3–20-lobed), ultimate apical lobes narrowly oblong, elliptic, oblong; oval, or obovate, 1–7 × 1–4 mm;

tips acute, subacute, obtuse, rounded or mucronulate; entire or 2–8-toothed.

0–2, similar to basal.

0–3, similar to basal.

peduncles 1–6, 10–35 cm, glabrate or sparsely to moderately scaberulose or puberulent;

involucral bracts 0;

rays 3–25, 1.5–12 cm, glabrate, sparsely scaberulose, or puberulent;

involucel bractlets 0–12, linear or lanceolate, 1–6 × 0.1–0.4 mm, glabrous; entire;

margins narrowly scarious or not;

umbellets 10–70-flowered;

pedicels 2–8 mm, glabrous, glabrate, scaberulose on ridges.

peduncles 1–4, 2–20 cm, glabrous, glabrate, or sparsely scaberulose or muriculate along ridges just below distal end;

involucral bracts 0, 4–16;

rays 1–6 cm, glabrous, glabrate, or sparsely scaberulose or muriculate along ridges;

involucel bractlets 0–4, linear, lanceolate, 0.5–1.5 × 0.1–0.3 mm;

margins not scarious;

umbellets 10–25-flowered;

pedicels 3–8 mm.

petals ochroleucous or yellow;

anthers ochroleucous or yellow.

petals ochroleucous or yellow;

anthers ochroleucous or yellow.

oblong, narrowly oblong, elliptic or obovate, 7–16 mm, glabrous, glabrate, or sparsely scaberulose or puberulent;

body 1.3–4 mm wide;

wings 0.7–3 mm; thin;

vittae 1 in intervals, 2 on commissure.

elliptic or oblong, 6–16 mm, glabrous;

body 1.5–4 mm wide;

wings 1–2.5 mm; thin;

vittae 1–2 in intervals, 2–4 on commissure.

=22.