Malacothrix saxatilis var. arachnoidea

(E. A. McGregor) E. W. Williams

Amer. Midl. Naturalist 58: 509. 1957.

Common names: Carmel Valley malacothrix
EndemicConservation concern
Basionym: Malacothrix arachnoidea E. A. McGregor Bull. Torrey Club 36: 605, fig. 3. 1909
Treatment appears in FNA Volume 19. Treatment on page 319. Mentioned on page 318.

Plants rhizomatous or with woody caudices. Herbage tomentose. Stems 1 (from rhizomes) or 2–3+ (from caudices), erect, freely branched, herbaceous or proximally woody, relatively leafy distally. Cauline leaves: proximal not pinnately lobed (lanceolate to elliptic, margins usually entire, apices acute); distal broadly lance-linear to elliptic or linear (firm, bases gradually tapering), margins usually entire, sometimes denticulate, apices usually acute. Arrays of heads relatively crowded to open. Cypselae 2.2–2.5 mm. 2n = 18.


Phenology: Flowering year-round.
Habitat: Rocky open banks, chaparral, coastal sage
Elevation: 200–2200 m

Discussion

Of conservation concern.

Variety arachnoidea grows in Carmel Valley (Monterey County) and in the San Rafael Mountains (Santa Barbara County).

Selected References

None.

Lower Taxa

None.

"fine" is not a number."]" is not declared as a valid unit of measurement for this property.

scarious +
ovate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
W. S. Davis +
(E. A. McGregor) E. W. Williams +
decurrent +
Malacothrix arachnoidea +
compound +  and simple +
lanceolate;obovate oblanceolate or spatulate +
tuberculate +, rugose +, muricate +  and smooth +
lanceolate;subulate +
subequal +  and unequal +
filiform +
Carmel Valley malacothrix +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1.3 cm13 mm <br />0.013 m <br /> (2 cm20 mm <br />0.02 m <br />) +
fimbriate +
stramineous +  and brown or purplish brown +
prismatic +
broadly lance-linear +  and elliptic +
200–2200 m +
glabrescent +, arachnose +, glabrous +, more or less arachnose +  and tomentose +
winged +  and beaked +
dispersed +
Rocky open banks, chaparral, coastal sage +
indeterminate +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and basal +
denticulate +
0.05mm +  and 0.2mm +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
2-carpellate +
persistent +
Flowering year-round. +
connate +  and distinct +
18 +  and 30 +
subequal +  and unequal +
Amer. Midl. Naturalist +
flat;more or less convex +
more prominent +
crenate +
exalbuminous +
Endemic +  and Conservation concern +
leafy +  and branched +
2 +  and 3 +
woody +  and herbaceous +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Malacothrix saxatilis var. arachnoidea +
Malacothrix saxatilis +
variety +
dentate to denticulate +  and entire +
20 cm200 mm <br />0.2 m <br /> (90 cm900 mm <br />0.9 m <br />) +
90 cm900 mm <br />0.9 m <br /> (200 cm2,000 mm <br />2 m <br />) +
with woody caudices +  and rhizomatous +