Sidalcea malviflora subsp. malviflora

[E]
Endemic
Synonyms: Sida delphiniifolia Nuttall ex Torrey & A. Gray Sidalcea delphiniifolia (Nuttall ex Torrey & A. Gray) A. Gray S. delphiniifolia var. humilis (A. Gray) Greene S. humilis
Treatment appears in FNA Volume 6. Treatment on page 342. Mentioned on page 344, 345.
Revision as of 10:35, 30 July 2020 by imported>Volume Importer
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Plants 0.3–0.6 m, with fibrous-woody taproot and widespreading rootstocks or rhizomes to 10 cm, not freely rooting, not matted. Stems erect or ascending, base decumbent, usually rooting, usually stellate-hairy and/or spreading-bristly to glabrate, hairs to 2 mm. Leaves basal and cauline; stipules lanceolate, 3–4 × 1.1 mm; petioles 8–15 cm on proximal leaves, reduced distally, proximal 3–4 times as long as blade, distal 1/2–2 times as long as blade; blade 2–6 cm wide, often fleshy; basal blades orbiculate to reniform, shallowly, palmately 7–9-lobed, margins coarsely crenate, surfaces usually appressed-hirsute or stellate-hairy with few-rayed hairs; mid and distal similar to basal or more deeply incised, 5–7 (–9) -lobed 3/4–4/5 times their length, lobes usually entire or shallowly toothed. Inflorescences open, 5–10-flowered, 5–20 cm, flowers evenly spaced 0.5–1 cm, especially in age, several often open at same time, axis longer in fruit; proximal bracts leaflike, often divided to base, distal bracts ovate to lanceolate, 2-fid or undivided, 3–6 mm, usually shorter or longer than pedicels. Pedicels 3–5 (–10) mm, longer on proximalmost flowers. Flowers: calyx sometimes purplish, 8–12 mm, densely stellate-puberulent and sparsely, coarsely bristly, bristles often on swollen pad, hairs at base shorter, denser, marginal hairs longest; petals pink to rose or lavender-purple, pale-veined, pistillate 7–11 mm, bisexual 15–29 mm; staminal column 5–7 mm; anthers white; stigmas (7 or) 8 or 9. Schizocarps 5–7 mm diam.; mericarps (7 or) 8 or 9, 3.5–4 mm, sparsely glandularpuberulent, strongly reticulate-veined, wrinkled and pitted on sides, mucro 0.5 mm. Seeds 2–3 mm. 2n = 40, 60.


Phenology: Flowering (Feb–)Mar–Jun(–Jul).
Habitat: Coastal prairies, bluffs, hillsides, scrub, open forests
Elevation: 0–500 m

Discussion

Subspecies malviflora is coastal and found also on the Channel Islands. It has deeply incised leaf blades, the lobes generally entire or not laciniate or ternate, with indument of scattered, coarse, long, simple and stellate hairs. It can be distinguished from subsp. rostrata, which has essentially unlobed leaves, and from subsp. laciniata by its lesser degree of division of the leaf lobes. It is far less frequent than formerly, having been extirpated in the Los Angeles area, where it was common. Plants from Monterey to San Francisco best match the original illustrations of subsp. malviflora, and the more typical form appears to persist on the Channel Islands. By distinguishing subsp. laciniata and subsp. rostrata, the typical subspecies is more clearly defined and more fully matches the original description and type.

Selected References

None.

Lower Taxa

None.

"/2-2timesaslongasblade" is not declared as a valid unit of measurement for this property."elongated" is not a number.

rounded +
Steven R. Hill +
7-9-lobed +, orbiculate +  and reniform +
usually stellate-hairy and/or +  and spreading-bristly glabrate +
cordate +
Sida malviflora +
asymmetric +  and symmetric +
dissected +, lobed +  and unlobed +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
pistillate +  and pale-veined +
overlapping +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
bright pink +  and lavender or dark rose-purple +
bristly +  and stellate-puberulent +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
indehiscent +  and loculicidal +
usually shorter or longer +
ovate;lanceolate 2-fid or undivided +
sparsely hairy;glabrate +
0–500 m +
sparse;copious +
unisexual +  and bisexual +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Coastal prairies, bluffs, hillsides, scrub, open forests +
forked +  and stellate +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5-10-flowered +  and open +
ascending +  and erect +
axillary +  and terminal +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0-1/2-2 times as long as blade +  and 3-9 times as long as blades +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
cauline +  and basal +
toothed +, entire +, 5-7(-9)-lobed +  and incised +
crenate-serrate +  and dentate +
reticulate-veined +
glabrous +, glandular +, stellate-puberulent +  and hirtellous +
wedge--shaped +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
5-9-lobed +  and unlobed +
0.5 cm5 mm <br />0.005 m <br /> (?) +
3-40-carpellate +
(1-)2-many +
swollen +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
pistillate +  and pale-veined +
pink;rose or lavender-purple +
adnate +  and distinct +
1.5 cm15 mm <br />0.015 m <br /> (2.9 cm29 mm <br />0.029 m <br />) +
8 cm80 mm <br />0.08 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering (Feb–)Mar–Jun(–Jul). +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
lobed +, unlobed +, reniform +  and orbiculate +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Smithsonian Contr. Knowl. +
widespreading +
not cordlike +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
5mm +  and 7mm +
hairy +  and glabrous +
reniform +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
persistent +
reticulate-veined +
honeycomb-pitted +
sessile +  and subsessile +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
solid +, branched +, unbranched +  and rooting +
scattered +  and clustered +
ascending;erect +
glabrescent +, stellate-hairy +  and hirsute +
9 +  and 8 +
filiform +, linear +  and capitate +
1-2 times number of carpels +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
purplish +  and green +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hairy +  and ciliate +
lanceolate +
1.1 cm11 mm <br />0.011 m <br /> (?) +
unbranched +  and branched +
stellate-hairy +  and appressed-hirsute +
Sida delphiniifolia +, Sidalcea delphiniifolia +, S. delphiniifolia var. humilis +  and S. humilis +
fibrous-woody +
Sidalcea malviflora subsp. malviflora +
Sidalcea malviflora +
subspecies +
60 cm600 mm <br />0.6 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
monoecious +, dioecious +  and hermaphroditic +