Lomatium minus
Lomatium salmoniflorum
Day Valley desert-parsley, John Day desert parsley, John Day Valley desert parsley
Salmon River biscuit-root, Salmon River desert-parsley, salmonflower biscuitroot
arising at slightly different heights, not forming just 1 rosette, blue-green, glaucous, often 2–3-ternate-3-pinnately dissected;
petiole broadly sheathing basally to 1/2 length;
blade triangular to ovate, 5–12 × 2.7–10 cm, surfaces glabrous;
penultimate segments narrow, usually less than 2 mm wide, ultimate segments 1000–5000, linear, 1–5 × 0.5 mm, not overlapping, margins entire, apex acute, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 1–5 mm;
cauline leaves 0–2, petioles sometimes sheathing more than 1/2 length.
arising at slightly different heights, not forming just 1 rosette, green or glaucous, ternate-2–4-pinnate;
petiole sheathing basally to entire length, glabrous;
blade broadly triangular, 8–35 × 5.5–16(–27) cm, surfaces glabrous;
apical 2–3 pinnule pairs of secondary leaflets without naked intercostal region between rachilla and basalmost pinnule lobes, appearing sessile: penultimate segments narrow, usually less than 2 mm wide; ultimate segments 400–1500, narrowly linear to linear or lanceolate, (1–)1.5–5(–7) × 0.3–0.6 mm, length/width ratio 4.4–12, congested, obscuring short intercostal areas along rachillae, margins entire, apex acute to linear, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 8–10 mm;
cauline leaves 1–few, petioles sheathing throughout.
absent or subterranean.
subterranean.
1–6 per plant, usually 1 per stem, decumbent, spreading, or ascending, strongly inflated at maturity, 5–15(–24) cm, exceeding leaves, 2–8(–11) mm wide 1 cm below umbel, glabrous.
1–3 per plant, 1 per stem, usually ascending rather than erect, not inflated, 9–27 cm, slender, exceeding leaves, 2–5.5 mm wide 1 cm below umbel, glabrous.
2.5–4.7 cm wide in flower, 3.6–8.6 cm wide in fruit, rays 6–16, spreading, 1–4(–6) cm in fruit, subequal to unequal, glabrous;
involucel bractlets several, distinct, linear-subulate, (3–)4–9(–15) mm, shorter or longer than flowers, margins very broadly scarious, not ciliate, entire, glabrous;
umbellets 8–15-flowered.
1.7–7.1 cm wide in flower, 6.4–12 cm wide in fruit, rays 4–13, spreading, 1–6 cm in fruit, subequal or unequal, glabrous;
involucel bractlets (0–)1–7, distinct, narrowly linear, 0–6 mm, shorter than flowers, margins narrowly scarious, not ciliate, entire, glabrous.
petals purple to dark pink, glabrous;
anthers purple;
ovary and young fruit glabrous.
petals salmon pink or salmon yellow, glabrous;
anthers yellow;
ovary and young fruit glabrous.
(5.5–)6.5–8(–9) mm, shorter than fruit.
4–16 mm, shorter than fruit.
± dorsiventrally compressed, narrowly elliptic or oblong-oval, 8.8–16(–19.3) × (3–)4.7–7.8 mm, length/width ratio 1.9–3.3;
wings 0.9–2 mm wide, 25–50% of body width, ± same color as body;
abaxial ribs slightly raised;
apex obtuse;
oil ducts usually 1 in intervals, 3–4 on commissure, conspicuous.
dorsiventrally compressed, elliptic, broadly elliptic, or oblong, (7.2–)9–14 × 4.6–7 mm, length/width ratio 1.7–2.7;
wings 0.6–1.4 mm wide, 15–35% of body width, ± same color as body;
abaxial ribs slightly raised;
apex rounded;
oil ducts usually 1 in intervals, 2 on commissure.
Lomatium minus
Lomatium salmoniflorum
Lomatium minus is strongly glaucous with purple or pink petals, narrow leaflets, and an inflated stem like that of L. columbianum. However, L. minus is a much smaller plant, and the peduncle is inflated unevenly. In mature fruits, the wings curve back, making each mericarp rounded in cross section like a bread roll. Lomatium minus is endemic to the Blue Mountains region of central Oregon, with an outlying population in northern Malheur County. It is sometimes confused with L. tuberosum, which has similar petal colors and leaflets but is endemic to central Washington. Lomatium minus is a culturally significant food plant to members of the Sahaptin Native nations (D. E. Moerman 1998).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lomatium salmoniflorum grows along the lower Snake and Clearwater rivers in Idaho and southeastern Washington. Thus far, reports from Oregon have been based on misidentified L. papilioniferum or Cymopterus terebinthinus. Lomatium salmoniflorum has many, narrowly linear ultimate leaf segments like other members of the L. grayi complex. Its petals are more or less salmon-colored, rather than yellow, and its foliage is consistently glabrous, whereas leaves of many members of the L. grayi complex are scabrous. Lomatium salmoniflorum has the proximalmost ultimate leaf segments on most penultimate leaf segments right near the attachment of the penultimate and antepenultimate segments, whereas the corresponding segments of the more widespread L. papilioniferum are clearly separated from that attachment point. Lomatium salmoniflorum leaves are more similar to those of L. brunsfeldianum and L. filicinum, which have proportionately longer fruits and are found farther upstream in the Snake River watershed. Lomatium salmoniflorum is a culturally significant food plant for members of the Nez Perce Native nations (D. E. Moerman 1998).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
WA
