familyCactaceae
subfamilyCactaceae subfam. Cactoideae
genusEchinocereus
speciesEchinocereus pectinatus

Echinocereus pectinatus

(Scheidweiler) Engelmann in F. A. Wislizenus

in F. A. Wislizenus, Mem. Tour N. Mexico, 109. 1848.

Allan D. Zimmerman, Bruce D. Parfitt
Common names: Rainbow cactus
Basionym: Echinocactus pectinatus Scheidweiler Bull. Acad. Roy. Sci. Bruxelles 5: 492. 1838
Treatment appears in FNA Volume 4. Mentioned on page 163, 164.
Revision as of 09:20, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Distribution

Tex., n Mexico

Discussion

Varieties 2 (1 in the flora).

At least in the United States, Echinocereus pectinatus (diploid) has only pink or purple flowers, unlike the polymorphic species E. dasyacanthus (tetraploid). Echinocereus pectinatus differs from the entire E. reichenbachii species group in that the areoles of its relatively thick-walled flower tube have stouter spines and much shorter hairs. Superficially similar species west of the Continental Divide, formerly associated with E. pectinatus (E. pseudopectinatus, E. rigidissimus, and some Sonoran species), are more closely related to the E. reichenbachii species group with densely bristly flower buds and delicate, ephemeral inner tepals. Echinocereus pectinatus var. pectinatus is endemic to Mexico; reports from the United States were misidentifications of var. wenigeri, E. pseudopectinatus (in Arizona), and unusually short-spined plants of E. dasyacanthus.

Selected References

None.

Lower Taxa

... more about "Echinocereus pectinatus"
RDF feed
Appearance shape
cushionlike +
Appendage architecture
arillate +
Appendage pubescence or texture
corky +
Areole architecture or shape
spiny +
Areole arrangement
confluent +, circular +  and linear +
Areole arrangement or shape
circular to linear +
Areole duration
deciduous +  and persistent +
Areole life cycle
year-old +
Areole presence
absent +
Areole prominence
Conspicuous (Obscure) +
Areole pubescence
woolly +
Areole shape
hourglass--shaped +
Areole some measurement
0.1 cm1 mm <br />0.001 m <br /> (5.2 cm52 mm <br />0.052 m <br />) +
Author
Allan D. Zimmerman +  and Bruce D. Parfitt +
Authority
(Scheidweiler) Engelmann in F. A. Wislizenus +
Bark pubescence or texture
woodlike +
Bark texture
hardened +
Base position relational
surrounding +
Basionyms
Echinocactus pectinatus +
Bract architecture or shape
leaflike +
Bract presence
absent +
Bract shape
triangular +
Central spine architecture
twisted +
Central spine arrangement or shape
elliptic +
Central spine course
curved +  and straight +
Central spine quantity
0 +  and 17 +
Central spine shape
variously angled +  and flattened +
Chain architecture
sessile +
Chain architecture or shape
symmetric +
Chain life cycle
proliferating +
Chain orientation
arising +
Chamber architecture
open +
Cladode length or size
long +
Cladode shape
flattened +  and cylindric +
Common name
Rainbow cactus +
Cortex coating
mucilaginous +
Cortex pubescence or texture
soft +
Cortex width
thick +
Crest shape
undulate +
Distribution
Tex. +  and n Mexico +
Epidermis arrangement
not separating +
Epidermis condition
intact +
Flower architecture
sessile +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower arrangement
arranged +
Flower atypical width
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flower duration
diurnal +
Flower height or length or size
short +
Flower length
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flower length or size
long +
Flower position
lateral +
Flower quantity
1 +
Flower reproduction
unisexual +  and bisexual +
Flower shape
tubular +
Flower tube atypical some measurement
2.6 cm26 mm <br />0.026 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flower tube fusion
adnate +
Flower tube position
epigynous +
Flower tube prominence
conspicuous +
Flower tube some measurement
0.5 cm5 mm <br />0.005 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Flower width
1.5 cm15 mm <br />0.015 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Fruit architecture or shape
berrylike +
Fruit coloration
red;pink;red;pink;purplish brown;green +
Fruit condition
drying +
Fruit dehiscence
dehiscent +  and indehiscent +
Fruit duration
persistent +, long +  and deciduous +
Fruit length or size
long +
Fruit shape
spheric +  and narrowly obovoid +
Fruit some measurement
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Fruit texture
juicy +
Glochid presence
absent +
Hair density
dense +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence derivation
true +
Inner tepal coloration
Contrasting color or similar to distal portion (?) +, Darker (?) +, Greenish (?) +, Brownish (?) +, Yellow (?) +, Orange (?) +, Magenta (?) +, Red (?) +  and Pink (?) +
Inner tepal shape
petal-like +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf duration
deciduous +  and persistent +
Leaf presence
absent +
Leaf prominence
rudimentary +
Leaf shape
flat +  and terete +
Leaf size
nearly +  and microscopic +
Leaf some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Long-shoot architecture or pubescence or relief
smooth +
Long-shoot relief
tuberculate +
Long-shoot shape
fluted;spheric;depressed-spheric or club-shaped +
Mound density
dense +
Nectary prominence
apparent +
Number of lower taxa
1 +
Outer tepal architecture or shape
sepal-like +
Outer tepal shape
Bractlike (?) +
Ovary derivation
true +
Ovary position relational
surrounding +
Ovary prominence
sunken +
Ovary relief
smooth +  and tuberculate +
Perianth duration
deciduous +  and persistent +
Perianth position
epigynous +
Pistil architecture
compound +
Pistil architecture or structure in adjective form
1-locular +
Pith coating
mucilaginous +
Pith pubescence or texture
soft +
Placenta arrangement
parietal +
Placenta atypical quantity
14 (20) +
Placenta quantity
3;14 +
Portion architecture or shape
spiny +
Portion arrangement
separated +
Portion life cycle
flowering +
Protuberance fusion
coalescent +
Protuberance shape
ridgelike +  and nipple--shaped +
Publication title
in F. A. Wislizenus, Mem. Tour N. Mexico, +
Publication year
1848 +
Reference
None +
Rib atypical quantity
30 (40) +
Rib orientation
vertical +
Rib quantity
4;26 +
Rib short-shoot architecture or shape
barbed +
Rib short-shoot size
minute +
Root density
diffuse +
Scale architecture or shape
leaflike +
Scale presence
absent +
Scale shape
triangular +
Scale size
minute +
Seed architecture
arillate +  and strophiolate +
Seed atypical quantity
0 (5) +
Seed coloration
dark reddish-brown +  and black +
Seed diameter
0.4mm;12mm +
Seed quantity
1;3000 +
Seed relief
rugose +  and tuberculate +
Seed shape
spheric;obovoid +
Seed some measurement
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Segment duration
persistent +
Segment fragility
detachable +
Skin architecture or shape
ribbed +
Skin fragility
brittle +
Skin relief
tuberculate +
Skin texture
hard +
Slit dehiscence or orientation
longitudinal +
Slit height or length or size
short +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V4/V4 312.xml +
Spine architecture
bristlelike +
Spine architecture or pubescence or relief
smooth +
Spine architecture or shape
ribbonlike +
Spine arrangement
cluster +, arranged +  and radial +
Spine atypical length
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Spine atypical quantity
38 (45) +
Spine atypical some measurement
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Spine coloration
black +, brown +, reddish +, yellow +  and white +
Spine coloration or pubescence or relief
striate +
Spine course
curved +  and straight +
Spine duration
deciduous +
Spine fragility
pliable +
Spine length
3mm +  and 150mm +
Spine presence
absent +
Spine prominence
prominent +
Spine pubescence
glabrous +
Spine pubescence or relief
rough +
Spine quantity
4 (?) +  and 38 (?) +
Spine relief
roughened +  and smooth +
Spine shape
acicular +  and subulate +
Spine some measurement
0.2 cm2 mm <br />0.002 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Spine texture
hard +
Spine width
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Stamen quantity
50;1500 +
Stamen shape
decurrent +
Stem architecture
unsegmented +
Stem atypical length
70cm (130cm) +
Stem atypical width
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Stem coloration
yellow-green +  and dark green +
Stem length
2 cm20 mm <br />0.02 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Stem shape
tapering +, spheric +  and long cylindric +
Stem some measurement
0 cm0 mm <br />0 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Stem texture
succulent +
Stem width
1cm;15cm +
Stigma lobe atypical quantity
14 (20) +
Stigma lobe coloration
yellowish green +  and green +
Stigma lobe quantity
5;22 +
Stipule presence
absent +
Style quantity
1 +
Surface architecture or shape
ribbed +
Surface relief
tuberculate +
Surface texture
woody +
Taproot architecture
adventitous +
Taproot derivation
adventitious +
Taproot shape
tuberlike +
Taxon family
Cactaceae +
Taxon habitat
epipetric +  and epiphytic +
Taxon name
Echinocereus pectinatus +
Taxon parent
Echinocereus +
Taxon rank
species +
Tepal quantity
5;50 +
Testa cell arrangement
confluent +
Testa cell shape
convex +
Testa reflectance
dull +  and glossy +
Tubercle fusion
distinct +
Tubercle presence
absent +
Volume
Volume 4 +
Whole organism architecture
unbranched +  and branched +
Whole organism architecture or arrangement or growth form
solitary +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism habitat
epiphytic;epiphytic;epiphytic +
Whole organism height or length or size
short +
Whole organism location
deep-seated +
Whole organism orientation
decumbent +, pendent +, sprawling +, ascending +  and erect +
Whole organism quantity
0 (?) +  and 500 (?) +
Whole organism shape
barrel-shaped +  and spheric +
X chromosome quantity
11 +