Sidalcea setosa

C. L. Hitchcock

Perenn. Sp. Sidalcea, 53. 1957.

Common names: Bristly-fruited or Edgewood checkerbloom
Endemic
Synonyms: Sidalcea setosa subsp. querceta C. L. Hitchcock
Treatment appears in FNA Volume 6. Treatment on page 353. Mentioned on page 320, 322, 330, 349, 350, 351, 354.

Herbs, perennial, 0.5–1 (–1.5) m, not glaucous, with thick, fibrous taproot or caudex and short, thick rootstocks that not rhizomelike. Stems 1–3, clustered, erect, solid, proximally hairy, hairs a mix of soft, appressed, stellate and/or longer, bristlelike, 2 mm, distally sparsely puberulent. Leaves basal and cauline; stipules deciduous, lanceolate, 4–7 (–15) × 1–2 mm; petioles of proximal leaves 10–20 cm, 3–4 times as long as blades, reduced distally to 1/2 times blade length; blades: proximal orbiculate, shallowly or deeply 5–9-lobed, 5–10 × 5–10 cm, base wide-cordate to ± truncate, lobe margins coarsely crenate and dentate, apex 2–5-toothed, mid-stem largest, 5–7 (–9) -lobed, usually incised ± to base, 10–25 × 10–25 cm, lobe margins coarsely dentate to laciniate or entire, surfaces scabrid-hairy, hairs simple or forked, stiff; distalmost 5–7-lobed, lobes linear, subentire, margins ciliate, surfaces glabrescent or with few hairs on abaxial veins. Inflorescences erect, spiciform or subcapitate, dense, calyces usually conspicuously overlapping in flower and sometimes in fruit, branched, ca. 10-flowered, flowers/calyces overlapping, not 1-sided, 3–7 (–10) cm, elongated in fruit; bracts lanceolate-elliptic, undivided, 3–8 mm, longer than pedicels, often longer than young flower buds, ± equaling calyx. Pedicels 1–2 mm, to 4 mm in fruit; involucellar bractlets absent. Flowers bisexual or unisexual and pistillate, plants gynodioecious; calyx 5–9 mm, to 10 mm in fruit, margins ciliate, minutely stellate-puberulent and bristly with longer, coarser, usually pustulate hairs usually on pads, bristle hairs 1–2 mm; petals pink to pinkish lavender, not notably whitish or pale-veined, (5–) 8–30 mm, pistillate 5–15 mm, bisexual to 20–30 mm; staminal column 5–7 mm, hairy; anthers white to pale-pink; stigmas (6 or) 7 or 8. Schizocarps 6–7 mm diam.; mericarps (6 or) 7 or 8, 2.5 mm, sparsely glandularpuberulent, margins usually sharpedged but not winged, sides coarsely reticulate-veined to nearly smooth, back lightly reticulate-veined, usually prominently roughened at least on margins and/or back, pitted, mucro 0.5 mm. Seeds 1.8 mm. 2n = 40, 60.


Phenology: Flowering Jun–Jul.
Habitat: Meadows, rocky hillsides, roadsides
Elevation: 300–2300 m

Discussion

Sidalcea setosa is distinguished by its branched inflorescence with each branch tipped by a dense spike, and by its conspicuously accrescent, membranous, bristly calyx. It intergrades with, and has been confused with, S. oregana subspp. oregana and spicata, and some authors have considered it to be doubtfully distinct from them. It is similar also to S. oregana subsp. eximia, and some plants show similarities to S. asprella. When mature, the fruit separates as a whole from the plant and can adhere to clothing or fur, an apparent adaptation for dispersal. It appears to be best developed and most frequent near Grants Pass, in the Klamath Range of Oregon.

Selected References

None.

Lower Taxa

None.
... more about "Sidalcea setosa"
white +  and pale-pink +
Steven R. Hill +
C. L. Hitchcock +
wide-cordate +  and more or less truncate +
dissected +, lobed +  and unlobed +
lanceolate-elliptic +
often longer +  and longer +
10-flowered +  and branched +
overlapping +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
indehiscent +  and loculicidal +
Bristly-fruited or Edgewood checkerbloom +
Calif. +  and Oreg. +
300–2300 m +
sparse;copious +
unisexual +  and bisexual +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Meadows, rocky hillsides, roadsides +
simple +  and bristlelike +
puberulent +
pustulate +  and coarser +
2 cm20 mm <br />0.02 m <br /> (?) +
subcapitate +  and spiciform +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
0-1/2 times blade length +  and 3-4 times as long as blades +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
cauline +  and basal +
coarsely dentate +  and laciniate or entire +
subentire +
entire +  and serrate +
bristly +  and stellate-puberulent +
wedge--shaped +
2.5 cm25 mm <br />0.025 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
incised +  and 5-7(-9)-lobed +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +
3-40-carpellate +
(1-)2-many +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
pistillate +  and pale-veined +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
adnate +  and distinct +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Jun–Jul. +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
5-9-lobed +, or +  and orbiculate +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Perenn. Sp. Sidalcea, +
elongated +
not rhizomelike +
6mm +  and 7mm +
hairy +  and glabrous +
reniform +
persistent +
reticulate-veined +, coarsely reticulate-veined +  and nearly smooth +
sessile +  and subsessile +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
8 +  and 7 +
filiform +, linear +  and capitate +
1-2 times number of carpels +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
unbranched +  and branched +
with few hairs +, glabrescent +  and scabrid-hairy +
Sidalcea setosa subsp. querceta +
Sidalcea setosa +
Sidalcea +
species +
plant +  and herb +