Difference between revisions of "Echinocereus pectinatus var. wenigeri"

L. D. Benson

Cact. Succ. J. (Los Angeles) 40: 124, fig. 3. 1968.

Common names: Weniger’shedgehog ashy white ra inbow cactus langtry rainbow cactus
Treatment appears in FNA Volume 4. Treatment on page 163. Mentioned on page 164.
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--><span class="statement" id="st-d0_s0" data-properties="plant architecture;plant architecture;plant architecture;age life cycle"><b>Plants </b>unbranched or few branched from near base in old age.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem height or length or size;stem shape;stem shape;stem atypical length;stem length;stem atypical width;stem width"><b>Stems </b>erect, short cylindric or sometimes spheric, 8–17 (–25) × 5.6–8 (–10) cm;</span> <span class="statement" id="st-d0_s2" data-properties="rib atypical count;rib count;crest shape">ribs (13–) 14–18, crests slightly undulate;</span> <span class="statement" id="st-d0_s3" data-properties="areole some measurement;areole arrangement">areoles 4–15 mm apart.</span> <span class="statement" id="st-d0_s4" data-properties="spine atypical count;spine atypical count;spine count;spine course;spine orientation;spine orientation;spine coloration;spine coloration;aspect architecture or pubescence or relief;largest spine coloration;largest spine coloration;growth increment duration"><b>Spines </b>(14–) 17–26 (–31) per areole, straight, tightly appressed (radial spines) or strongly projecting (central spines), presenting smooth general aspect to plant, ashy white, never pink, largest spines tipped purplish brown, annual growth increments not marked by rings of different color;</span> <span class="statement" id="st-d0_s5" data-properties="spine arrangement;spine atypical count;spine atypical count;spine count;spine atypical some measurement;spine some measurement">radial spines (13–) 15–24 (–26) per areole, 7–10 (–13) mm;</span> <span class="statement" id="st-d0_s6" data-properties="central spine atypical count;central spine atypical count;central spine count;central spine height or length or size;central spine prominence;central spine shape;central spine atypical some measurement;central spine some measurement">central spines (1–) 2–6 (–7) per areole, short, inconspicuous, nearly terete, (2.2–) 4–6 mm.</span> <span class="statement" id="st-d0_s7" data-properties="flower atypical length;flower length;flower atypical width;flower atypical width;flower width"><b>Flowers </b>7–9 (–11) × (5–) 5.5–10 (–13) cm;</span> <span class="statement" id="st-d0_s8" data-properties="flower tube length;flower tube width">flower tube 10–15 × 15–25 mm;</span> <span class="statement" id="st-d0_s9" data-properties="flower tube hair atypical some measurement;flower tube hair some measurement">flower tube hairs 2–3 (–5) mm;</span> <span class="statement" id="st-d0_s10" data-properties="inner tepal orientation;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal length;inner tepal width;tip width;tip fragility">inner tepals often stiffly ascending, pink or magenta, white in proximal 1/2, green near base (distal colored portion varying greatly in extent), 34–62 × 7–19 mm, tips relatively thin and delicate;</span> <span class="statement" id="st-d0_s11" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s12" data-properties="nectar chamber some measurement">nectar chamber 2–6 mm.</span> <span class="statement" id="st-d0_s13" data-properties="fruit coloration;fruit some measurement"><b>Fruits </b>dark purplish, 25–30 mm, pulp white to pink.</span> <span class="statement" id="st-d0_s14" data-properties="pulp coloration;pulp coloration;pulp coloration;2n chromosome count">2n = 22.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>unbranched or few branched from near base in old age. <b>Stems</b> erect, short cylindric or sometimes spheric, 8–17(–25) × 5.6–8(–10) cm; ribs (13–)14–18, crests slightly undulate; areoles 4–15 mm apart. <b>Spines</b> (14–)17–26(–31) per areole, straight, tightly appressed (radial spines) or strongly projecting (central spines), presenting smooth general aspect to plant, ashy white, never pink, largest spines tipped purplish brown, annual growth increments not marked by rings of different color; radial spines (13–)15–24(–26) per areole, 7–10(–13) mm; central spines (1–)2–6(–7) per areole, short, inconspicuous, nearly terete, (2.2–)4–6 mm. <b>Flowers</b> 7–9(–11) × (5–)5.5–10(–13) cm; flower tube 10–15 × 15–25 mm; flower tube hairs 2–3(–5) mm; inner tepals often stiffly ascending, pink or magenta, white in proximal 1/2, green near base (distal colored portion varying greatly in extent), 34–62 × 7–19 mm, tips relatively thin and delicate; anthers yellow; nectar chamber 2–6 mm. <b>Fruits</b> dark purplish, 25–30 mm, pulp white to pink. <b>2n</b> = 22.</span><!--
  
 
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|phenology=Flowering Mar–May; fruiting May–Jul.
 
|habitat=Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops
 
|habitat=Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops
 
|elevation=300-900[-1700] m
 
|elevation=300-900[-1700] m
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|basionyms=
 
|basionyms=
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering Mar–May; fruiting May–Jul.
 
|habitat=Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops
 
|habitat=Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops
 
|elevation=300-900[-1700] m
 
|elevation=300-900[-1700] m
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|publication year=1968
 
|publication year=1968
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_313.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_313.xml
 
|subfamily=Cactaceae subfam. Cactoideae
 
|subfamily=Cactaceae subfam. Cactoideae
 
|genus=Echinocereus
 
|genus=Echinocereus
 
|species=Echinocereus pectinatus
 
|species=Echinocereus pectinatus
 
|variety=Echinocereus pectinatus var. wenigeri
 
|variety=Echinocereus pectinatus var. wenigeri
|2n chromosome count=22
 
|age life cycle=old
 
|anther coloration=yellow
 
|areole arrangement=apart
 
|areole some measurement=4mm;15mm
 
|aspect architecture or pubescence or relief=smooth
 
|central spine atypical count=6;7
 
|central spine atypical some measurement=2.2mm;4mm
 
|central spine count=2;6
 
|central spine height or length or size=short
 
|central spine prominence=inconspicuous
 
|central spine shape=terete
 
|central spine some measurement=4mm;6mm
 
|crest shape=undulate
 
|flower atypical length=9cm;11cm
 
|flower atypical width=10cm;13cm
 
|flower length=7cm;9cm
 
|flower tube hair atypical some measurement=3mm;5mm
 
|flower tube hair some measurement=2mm;3mm
 
|flower tube length=10mm;15mm
 
|flower tube width=15mm;25mm
 
|flower width=5.5cm;10cm
 
|fruit coloration=dark purplish
 
|fruit some measurement=25mm;30mm
 
|growth increment duration=annual
 
|inner tepal coloration=green;white;magenta;pink
 
|inner tepal length=34mm;62mm
 
|inner tepal orientation=ascending
 
|inner tepal width=7mm;19mm
 
|largest spine coloration=brown;tipped purplish
 
|nectar chamber some measurement=2mm;6mm
 
|plant architecture=branched;few;unbranched
 
|pulp coloration=white;pink
 
|rib atypical count=13;14
 
|rib count=14;18
 
|spine arrangement=radial
 
|spine atypical count=24;26
 
|spine atypical some measurement=10mm;13mm
 
|spine coloration=pink;ashy white
 
|spine count=15;24
 
|spine course=straight
 
|spine orientation=projecting;appressed
 
|spine some measurement=7mm;10mm
 
|stem atypical length=17cm;25cm
 
|stem atypical width=8cm;10cm
 
|stem height or length or size=short
 
|stem length=8cm;17cm
 
|stem orientation=erect
 
|stem shape=spheric;cylindric
 
|stem width=5.6cm;8cm
 
|tip fragility=delicate
 
|tip width=thin
 
 
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-->[[Category:Treatment]][[Category:Echinocereus pectinatus]]
 
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Revision as of 15:05, 27 July 2019

Plants unbranched or few branched from near base in old age. Stems erect, short cylindric or sometimes spheric, 8–17(–25) × 5.6–8(–10) cm; ribs (13–)14–18, crests slightly undulate; areoles 4–15 mm apart. Spines (14–)17–26(–31) per areole, straight, tightly appressed (radial spines) or strongly projecting (central spines), presenting smooth general aspect to plant, ashy white, never pink, largest spines tipped purplish brown, annual growth increments not marked by rings of different color; radial spines (13–)15–24(–26) per areole, 7–10(–13) mm; central spines (1–)2–6(–7) per areole, short, inconspicuous, nearly terete, (2.2–)4–6 mm. Flowers 7–9(–11) × (5–)5.5–10(–13) cm; flower tube 10–15 × 15–25 mm; flower tube hairs 2–3(–5) mm; inner tepals often stiffly ascending, pink or magenta, white in proximal 1/2, green near base (distal colored portion varying greatly in extent), 34–62 × 7–19 mm, tips relatively thin and delicate; anthers yellow; nectar chamber 2–6 mm. Fruits dark purplish, 25–30 mm, pulp white to pink. 2n = 22.


Phenology: Flowering Mar–May; fruiting May–Jul.
Habitat: Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops
Elevation: 300-900[-1700] m

Discussion

Plants of Echinocereus pectinatus var. wenigeri are entirely whitish in aspect, without the conspicuous annual color banding characteristic of other “rainbow cacti” and without the gloss, luster, or translucency generally perceived in fresh spines. Without flowers or fruits, this variety is easily misidentified as E. reichenbachii, with which it sometimes grows sympatrically. Echinocereus pectinatus has white-centered flowers (with green throats, forming a target pattern) whereas E. dasyacanthus flowers, irrespective of color form, have only the greenish throats and no white bands on the inner tepals.

Selected References

None.

Lower Taxa

None.
Allan D. Zimmerman +  and Bruce D. Parfitt +
L. D. Benson +
Echinocactus pectinatus +
Weniger’shedgehog +, ashy white ra inbow cactus +  and langtry rainbow cactus +
Tex. +  and Mexico (Coahuila). +
300-900[-1700] m +
Tamaulipan thorn scrub, degraded grasslands, often with Juniperus pinchotii, Chihuahuan desert scrub, limestone outcrops +
Flowering Mar–May +  and fruiting May–Jul. +
Cact. Succ. J. (Los Angeles) +
Echinocereus pectinatus var. wenigeri +
Echinocereus pectinatus +
variety +