familyAsteraceae
tribeAsteraceae tribe Mutisieae
genusAcourtia
speciesAcourtia thurberi

Acourtia thurberi

(A. Gray) Reveal & R. M. King

Phytologia 27: 231. 1973.

Beryl B. Simpson
Common names: Thurber’s desertpeony
Basionym: Perezia thurberi A. Gray Pl. Nov. Thurber., 324. 1854
Treatment appears in FNA Volume 19. Treatment on page 74. Mentioned on page 73.

Plants 40–150 cm (stems sulcate to striate distally, densely glandular). Leaves cauline and/or basal; sessile; blades ovate to ovate-elliptic, 1.5 (cauline) –18 (basal) cm, bases shortly sagittate or clasping, margins acerose-denticulate, faces densely glandular-puberulent. Heads in subcongested corymbiform arrays. Involucres obconic to campanulate, 7–9 mm. Phyllaries in 2–3 series, oblong-oblanceolate, apices acuminate, abaxial faces densely glandular-hairy. Receptacles alveolate, glandular. Florets 3–6; corollas lavender-pink (purple), 7–12 mm. Cypselae subcylindric to subfusiform, 3–7 mm, glandular; pappi bright white, 8–9 mm (rigid). 2n = 54.


Phenology: Flowering Oct–Nov.
Habitat: Gravel and caliche soils in warm Sonoran desert scrub
Elevation: 100–200 m

Distribution

V19-8-distribution-map.gif

Ariz., N.Mex., Mexico (Chihuahua), Mexico (Durango), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Acourtia thurberi"
RDF feed
2n chromosome quantity
54 +
Abaxial face pubescence
glandular-hairy +
Anther base shape
tailed +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex shape
acuminate +
Apex texture
scarious +
Apical appendage shape
lanceolate +
Appendage pubescence
hirsute +
Appendage quantity
0 +
Appendage relief
papillate +
Array architecture
corymbiform +  and subcongested +
Array development
indeterminate +  and determinate +
Author
Beryl B. Simpson +
Authority
(A. Gray) Reveal & R. M. King +
Band architecture
continuous +
Band quantity
1 +
Basal appendage architecture or shape
entire +
Basal appendage shape
rounded +  and elongate +
Base architecture or fixation
clasping +
Base shape
sagittate +
Basionyms
Perezia thurberi +
Blade architecture
compound +  and simple +
Blade shape
ovate;ovate-elliptic +
Blade some measurement
1.5 cm15 mm <br />0.015 m <br /> (18 cm180 mm <br />0.18 m <br />) +
Body architecture
ribbed;smooth +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
less barbellate +  and nearly smooth +
Bristle atypical quantity
60;80 +
Bristle coloration
white +  and tan +
Bristle quantity
40;60 +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Common name
Thurber’s desertpeony +
Corolla architecture
zygomorphic +
Corolla coloration
lavender-pink +
Corolla some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or function or pubescence
glandular +
Cypsela architecture or shape
ribbed +  and not beaked +
Cypsela shape
subcylindric +  and subfusiform +
Cypsela some measurement
3mm;7mm +
Distribution
Ariz. +, N.Mex. +, Mexico (Chihuahua) +, Mexico (Durango) +  and Mexico (Sonora) +
Elevation
100–200 m +
Embryo course
straight +
Face pubescence
glandular-puberulent +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
25;80 +
Floret position
proximal +
Floret quantity
3;6 +
Floret reproduction
fertile +  and bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Habitat
Gravel and caliche soils in warm Sonoran desert scrub +
Head architecture or arrangement
quasi-radiate +
Head arrangement
in paniculiform or corymbiform arrays +  and singly +
Head atypical quantity
3 (2) +
Head development
indeterminate +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Inner floret architecture
staminate +
Inner floret reproduction
bisexual +
Involucre position relational
surrounding +
Involucre shape
obconic;campanulate +
Involucre some measurement
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf position
basal +  and cauline +
Limb quantity
lacking +
Line quantity
2 +
Margin architecture or shape
serrate +  and dentate +
Margin shape
acerose-denticulate +
Margin texture
scarious +
Number of lower taxa
0 +
Outer floret architecture
pistillate +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Pappus coloration
bright white +
Pappus duration
persistent +
Pappus presence
absent +
Pappus some measurement
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Petal fusion
connate +
Phenology
Flowering Oct–Nov. +
Phyllary duration
persistent +
Phyllary fusion
connate +  and distinct +
Phyllary growth form or texture
herbaceous +
Phyllary life cycle
falling +
Phyllary shape
Oblong-oblanceolate (?) +
Phyllary size
unequal +
Publication title
Phytologia +
Publication year
1973 +
Receptacle architecture
paleate +
Receptacle architecture or function or pubescence
glandular +
Receptacle pubescence
pubescent +
Receptacle relief
alveolate +
Receptacle shape
convex;flat;convex;flat;concave +
Reference
None +
Root texture
fibrous +
Scale architecture
barbellulate +  and smooth +
Scale shape
plumose +, subulate +  and setiform +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
3 (9) +
Series quantity
2;3 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19 8.xml +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
prostrate +  and ascending +
Style-branch architecture
appendaged +  and truncate +
Style-branch height or length or size
short +
Style architecture
2-branched +
Style pubescence
hairy +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Acourtia thurberi +
Taxon parent
Acourtia +
Taxon rank
species +
Volume
Volume 19 +
Whole-organism atypical some measurement
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Whole-organism duration
perennial +
Whole-organism some measurement
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Whole organism growth form
plant +
Whole organism some measurement
40cm (150cm) +
X chromosome quantity
27 +