familyRanunculaceae
genusDelphinium
sectionDelphinium sect. Diedropetala
subsectionDelphinium subsect. Grumosa
speciesDelphinium treleasei

Delphinium treleasei

Bush ex K. C. Davis

Minnesota Bot. Stud. 2: 444. 1900.

Michael J. Warnock
Common names: Trelease's larkspur
EndemicIllustrated
Treatment appears in FNA Volume 3.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Stems (40-) 60-80 (-110) cm; base reddish, glabrous, glaucous. Leaves mostly basal; basal leaves 3-7 at anthesis; cauline leaves 1-3 at anthesis; petiole 0.5-19 cm. Leaf-blade round to reniform, 0.5-8 × 2-20 cm, glabrous; ultimate lobes 3-35 (-56), 5 or more extending more than 3/5 distance to petiole, width 2-6 mm (basal), 0.5-2 mm (cauline), widest at middle or in proximal 1/2. Inflorescences 5-30 (-56) -flowered; pedicel (1-) 2.5-7 (-11) cm, glabrous; bracteoles 1-7 (-46) mm from flowers, blue or green, awl-shaped, 1.5-4 (-12) mm, glabrous. Flowers: sepals dark bright blue, usually retaining color upon drying, nearly glabrous, lateral sepals spreading, (10-) 12-17 (-20) × 4-8 (-10) mm, spurs straight, ascending ca. 45°, 15-17 mm; lower petal blades ± covering stamens, 5-8 mm, clefts (1-) 3-5 mm; hairs centered, densest above base of cleft, yellow. Fruits 12-18 (-22) mm, 3-4 times longer than wide, glabrous. Seeds unwinged; seed-coat cell surfaces smooth. 2n = 16.


Phenology: Flowering late spring.
Habitat: Open juniper glades on calcareous substrate
Elevation: 250-450 m

Distribution

V3 713-distribution-map.gif

Ark., Mo.

Discussion

Delphinium treleasei is locally abundant but extremely limited by microhabitat within its distributional range.

Hybrids between Delphinium treleasei and D. carolinianum subsp. carolinianum are known.

Selected References

None.

Lower Taxa

None.

"widest" is not a number.

... more about "Delphinium treleasei"
RDF feed
2n chromosome quantity
16 +
Anther dehiscence
dehiscing +
Author
Michael J. Warnock +
Authority
Bush ex K. C. Davis +
Basal leaf quantity
3;7 +
Basal leaf size
usually larger +
Basal petiole orientation
spreading +
Base coloration
reddish +
Base fixation
attached +
Base pubescence
glaucous +  and glabrous +
Base shape
narrowed +
Base size
expanded +
Basionyms
Delphinium sect. Grumosa +
Beak course
straight +
Beak position or structure subtype
terminal +
Beak some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Blade shape
lobing +
Bract quantity
fewer +
Bract shape
lobed +
Bract size
smaller +
Bracteole architecture
sepaloid +
Bracteole arrangement
subopposite-subalternate +
Bracteole atypical some measurement
0.4 cm4 mm <br />0.004 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Bracteole coloration
green +  and blue +
Bracteole location
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Bracteole presence
absent +
Bracteole pubescence
glabrous +
Bracteole shape
awl--shaped +
Bracteole some measurement
1.5mm;4mm +
Bud size
minute +
Bud some measurement
0 cm0 mm <br />0 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
Capsule arrangement
aggregated +
Capsule shape
globose;cylindric +
Cauline leaf arrangement
alternate +
Cauline leaf quantity
1 (3) +
Cauline petiole orientation
ascending +
Cell margin course
straight +
Cell relief
roughened +  and smooth +
Cell shape
elongate +
Cell surface architecture or pubescence or relief
smooth +
Cleft atypical some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Cleft some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Common name
Trelease's larkspur +
Distribution
Ark. +  and Mo. +
Elevation
250-450 m +
Embryo size
small +
Endosperm quantity
abundant +
Flower architecture
sessile +  and pedicellate +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower prominence
showy +  and inconspicuous +
Flower quantity
2;6 +
Flower reproduction
bisexual +
Fruit atypical some measurement
1.8 cm18 mm <br />0.018 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Fruit l w ratio
3-4 +
Fruit orientation
spreading +
Fruit pubescence
glabrous +
Fruit quantity
5 +
Fruit some measurement
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Fruits follicle architecture
sessile +  and aggregate +
Fruits follicle shape
curved-cylindric +
Habitat
Open juniper glades on calcareous substrate +
Hair coloration
yellow +
Hair density
densest +
Hair position
centered +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence architecture
5-30(-56)-flowered +
Inflorescence l w ratio
3 +
Inflorescence position
axillary +  and terminal +
Inflorescence position or structure subtype
terminal +
Inflorescence shape
pyramidal +
Lateral sepal atypical length
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Lateral sepal atypical width
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Lateral sepal condition
drying +
Lateral sepal length
1.2 cm12 mm <br />0.012 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Lateral sepal orientation
spreading +
Lateral sepal pubescence
glabrous +
Lateral sepal quantity
2 +
Lateral sepal shape
less ovate +  and elliptic +
Lateral sepal some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Lateral sepal width
4mm;8mm +
Leaf-blade architecture
compound +
Leaf-blade architecture or shape
undivided +
Leaf-blade length
0.5 cm5 mm <br />0.005 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Leaf-blade pubescence
glabrous +
Leaf-blade shape
round +  and reniform +
Leaf-blade width
2cm;20cm +
Leaf architecture
petiolate +
Leaf arrangement
whorled +, opposite +  and alternate +
Leaf position
basal +
Leaf size
reduced +
Lobe shape
lacerate;crenate +
Lower petal quantity
2 +
Lower petal shape
clawed +, 2-lobed +, ovate +  and plane +
Lower petal some measurement
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Lower sepal quantity
2 +
Margin architecture
palmate +  and pinnate +
Margin architecture or shape
entire +
Margin shape
incised;toothed;incised;toothed;entire +
Midpedicel angle degree
30+° +
Nectary presence
absent +
Number of lower taxa
0 +
Other size
smaller +
Ovule quantity
8;20 +
Pedicel atypical some measurement
7 cm70 mm <br />0.07 m <br /> (11 cm110 mm <br />0.11 m <br />) +
Pedicel orientation
spreading +
Pedicel presence
absent +
Pedicel pubescence
glabrous +
Pedicel some measurement
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Perianth position
hypogynous +
Petal blade some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Petal fusion
distinct +
Petal prominence
conspicuous +
Petal quantity
0;26 +
Petal shape
spurred +, funnel--shaped +, cup-shaped +  and plane +
Petal size
reduced +
Petiole architecture or shape
sheathing +
Petiole height or length or size
shorter +
Petiole presence
absent +
Petiole some measurement
0.5 cm5 mm <br />0.005 m <br /> (19 cm190 mm <br />0.19 m <br />) +
Petiole width
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Phenology
Flowering late spring. +
Pistil architecture
simple +
Pistil atypical quantity
3 (5) +
Pistil quantity
3 +
Publication title
Minnesota Bot. Stud. +
Publication year
1900 +
Raceme architecture
2-100-flowered +
Raceme some measurement
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Reference
None +
Ridge quantity
lacking +
Ridge shape
wavy +
Root architecture
cormlike +  and fascicled +
Root architecture or arrangement
fasciculate +
Root atypical some measurement
7 cm70 mm <br />0.07 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Root fragility
brittle +
Root shape
tuberlike +
Root some measurement
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Root texture
succulent +, fleshy +  and fibrous +
Seed architecture
unwinged +
Seed coloration
dark-brown +  and black +
Seed length
0.15 cm1.5 mm <br />0.0015 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Seed pubescence or relief
rough +
Seed quantity
1;many +
Seed relief
ringed +
Seed shape
obpyramidal +
Seed width
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Sepal architecture
petaloid +
Sepal architecture or shape
spurred +
Sepal arrangement
imbricate +
Sepal atypical quantity
6 (20) +
Sepal character
color +
Sepal coloration
blue;dark bright +
Sepal duration
not persistent +
Sepal fusion
distinct +
Sepal quantity
3 +  and 6 +
Side architecture
not +  and veined +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3 713.xml +
Special status
Endemic +  and Illustrated +
Spur course
straight +
Spur orientation
ascending +
Spur some measurement
1.5 cm15 mm <br />0.015 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Stamen fusion
distinct +
Stamen quantity
25;40 +
Staminode presence
absent +
Stem architecture
unbranched +
Stem atypical quantity
1 (2) +
Stem atypical some measurement
80 cm800 mm <br />0.8 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
Stem quantity
1 +
Stem some measurement
60 cm600 mm <br />0.6 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Stipule presence
absent +
Style duration
persistent +
Style presence
absent +
Taxon family
Ranunculaceae +
Taxon name
Delphinium treleasei +
Taxon parent
Delphinium subsect. Grumosa +
Taxon rank
species +
Ultimate lobe atypical quantity
35 (56) +
Ultimate lobe quantity
/5 (3) +
Ultimate lobe some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Upper petal architecture or shape
spurred +
Upper petal quantity
2 +
Upper sepal architecture or shape
spurred +
Upper sepal quantity
1 +
Upper sepal some measurement
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
Volume
Volume 3 +
Week quantity
2 (10) +
Whole organism architecture
rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
herb +
Whole organism position
low +
Whole organism texture
herbaceous +  and woody +
X chromosome quantity
8 +