Xanthisma spinulosum var. gooddingii

(A. Nelson) D. R. Morgan & R. L. Hartman

Sida 20: 1408. 2003.

Basionym: Sideranthus gooddingii A. Nelson Bot. Gaz. 37: 266. 1904 (as gooddingi)
Synonyms: Haplopappus gooddingii (A. Nelson) Munz & I. M. Johnston Haplopappus spinulosus subsp. gooddingii (A. Nelson) H. M. Hall Haplopappus spinulosus var. gooddingii (A. Nelson) S. F. Blake Machaeranthera pinnatifida subsp. gooddingii (A. Nelson) B. L. Turner & R. L. Hartman Machaeranthera pinnatifida var. gooddingii (A. Nelson) B. L. Turner & R. L. Hartman
Treatment appears in FNA Volume 20. Treatment on page 392. Mentioned on page 391.

Subshrubs, 70–100 cm, often woody in proximal 1/3+. Stems erect to spreading, branched in distal 2/3; mid internodes 5–20+ mm. Leaves relatively sparse, crowded proximally, widely spreading, little reduced distally, margins pinnatifid to 2-pinnatifid, lobes often linear, 3–15+ mm, mostly entire, faces glabrous or sparsely hairy, stipitate-glandular. Heads mostly borne singly. Peduncles 2–15+ cm, bracteate. Involucres 15–25 mm wide. 2n = 8, 16.


Phenology: Flowering winter–spring.
Habitat: Rocky to sandy washes, slopes, and roadsides
Elevation: 200–1700 m

Distribution

V20-893-distribution-map.gif

Ariz., Calif., Nev., Mexico (Baja California), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"spreading" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Ronald L. Hartman +
(A. Nelson) D. R. Morgan & R. L. Hartman +
decurrent +
indurate +
Sideranthus gooddingii +
0.2 cm2 mm <br />0.002 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblong;lanceolate +
reduced +
0.1cm;3cm +
rugulose +  and muricate +
barbellulate +  and barbellate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
not 2-lipped +  and actinomorphic +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
flattened +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Ariz. +, Calif. +, Nev. +, Mexico (Baja California) +  and Mexico (Sonora) +
200–1700 m +
stipitate-glandular +, hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky to sandy washes, slopes, and roadsides +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
hemispheric;cupulate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ovate +  and orbiculate or depressed-elliptic +
unequal +
1mm;2.5mm +
serrate +  and entire +
sessile +  and short-petiolate +
cauline +  and basal +
reduced +
bristle-tipped +
triangular +
entire +  and dentate +
pinnatifid +  and 2-pinnatifid +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2-carpellate +
persistent +
30 +  and 90 +
flattened +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
stipitate-glandular +, hairy +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering winter–spring. +
light green +  and stramineous +
appressed +  and squarrose +
linear +  and linear-lanceolate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
connate +  and distinct +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
connate +  and distinct +
laciniate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
connate +  and distinct +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
unequal +
erect +  and spreading +
1 +  and 30 +
green patch +
expanded +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus gooddingii +, Haplopappus spinulosus subsp. gooddingii +, Haplopappus spinulosus var. gooddingii +, Machaeranthera pinnatifida subsp. gooddingii +  and Machaeranthera pinnatifida var. gooddingii +
Xanthisma spinulosum var. gooddingii +
Xanthisma spinulosum +
variety +
stipitate-glandular +, glabrous +  and hairy +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
4 +, 3 +  and [2 +