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Lewisia leeana

many flower lewisia, quill-leaf lewisia

Lewisia cotyledon

cliff lewisia, cliff maids, Siskiyou lewisia

Taproots

gradually ramified distally.

gradually ramified distally.

Stems

spreading or suberect, 8–20 cm.

ascending to suberect, 10–12(–30) cm.

Leaves

basal leaves evergreen, sessile, blade linear, ± terete, 1.5–6 cm, margins entire, apex obtuse;

cauline leaves alternate, intergrading with bracts, blade narrowly lanceolate, 5 mm, margins entire, apex acute.

basal leaves evergreen, sessile or abruptly or gradually narrowed to broad petiole, blade oblanceolate, obovate, spatulate, or rarely ± linear or ± orbiculate, ± flattened, 3–14 cm, margins entire, crisped, or toothed, apex truncate, emarginate, retuse, or rounded;

cauline leaves alternate, intergrading with bracts, blade oblong to ovate, 5–10 mm, margins glandular-toothed, apex acute to occasionally obtuse.

Inflorescences

paniculate cymes, 50–70(–100)-flowered;

bracts several, alternate proximally, 2 at each flowering node distally, ovate to narrowly lanceolate, 2–5 mm, margins glandular-toothed, apex acute.

dense, paniculate to subumbellate cymes, 10–50-flowered;

bracts alternate or opposite proximally, 2 at each flowering node distally, obovate to lanceolate, 2–4 mm, margins glandular-toothed, apex acute.

Flowers

pedicellate, not disarticulate in fruit;

sepals 2, suborbiculate, 1–4 mm, herbaceous at anthesis, margins glandular-toothed, apex truncate;

petals 5–8, magenta, lavender, or white with or without magenta veins, obovate, 5–7 mm;

stamens 4–8;

stigmas 2;

pedicel 3–15 mm.

pedicellate, not disarticulate in fruit;

sepals 2, suborbiculate to broadly ovate, 4–6 mm, herbaceous at anthesis, margins glandular-toothed, apex obtuse to truncate;

petals 7–10, usually pink-purple with pale and darker stripes, less often white, cream with pink-orange stripes, ± orange, or yellow, oblanceolate, obovate, or spatulate, (8–)12–20 mm;

stamens 5–12;

stigmas 2–4;

pedicel 2–5 mm.

Capsules

4–5 mm.

3–5 mm.

Seeds

1–2, 2–2.5 mm, shiny, smooth.

4–15, 1.5 mm, shiny, smooth.

2n

= 14.

Lewisia leeana

Lewisia cotyledon

Phenology Flowering summer.
Habitat Open north- or northwest-facing granitic or serpentine slopes or cliffs
Elevation 1300-3400 m (4300-11200 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Lewisia leeana is known only from northwestern California and southwesternmost Oregon, and a disjunct population in Fresno County, California. As discussed by B. Mathew (1989b), Lewisia ×whiteae Purdy (California) is a natural, constantly recurring hybrid between L. leeana and L. cotyledon. In their narrowly spatulate leaves, the hybrids resemble L. columbiana out of range (cf. L. T. Dempster 1993); the flowers are reportedly more deeply colored.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 3 (3 in the flora).

The varieties occasionally co-occur. Natural hybrids with Lewisia leeana are known (see discussion under 8. L. leeana).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Basal leaf blade margins entire or slightly undulate, not toothed or crisped; petals (8-)12-14 mm
var. cotyledon
1. Basal leaf blade margins strongly crisped or toothed; petals 12-20 mm
→ 2
2. Basal leaf blade margins toothed.
var. heckneri
2. Basal leaf blade margins strongly crisped
var. howellii
Source FNA vol. 4, p. 481. FNA vol. 4, p. 480.
Parent taxa Portulacaceae > Lewisia Portulacaceae > Lewisia
Sibling taxa
L. brachycalyx, L. cantelovii, L. columbiana, L. congdonii, L. cotyledon, L. disepala, L. kelloggii, L. longipetala, L. maguirei, L. nevadensis, L. oppositifolia, L. pygmaea, L. rediviva, L. stebbinsii, L. triphylla
L. brachycalyx, L. cantelovii, L. columbiana, L. congdonii, L. disepala, L. kelloggii, L. leeana, L. longipetala, L. maguirei, L. nevadensis, L. oppositifolia, L. pygmaea, L. rediviva, L. stebbinsii, L. triphylla
Subordinate taxa
L. cotyledon var. cotyledon, L. cotyledon var. heckneri, L. cotyledon var. howellii
Synonyms Calandrinia leeana, L. eastwoodiana, Oreobroma leeanum Calandrinia cotyledon, Oreobroma cotyledon
Name authority (Porter) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 269. (1897) (S. Watson) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 268. (1897)
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