Chelone obliqua var. speciosa

Pennell & Wherry

Bartonia 10: 19, plate 2, fig. 1. 1929.

Common names: Rose or purple turtlehead
Endemic
Synonyms: Chelone obliqua subsp. speciosa (Pennell & Wherry) Pennell
Treatment appears in FNA Volume 17. Treatment on page 60.

Leaves: midcauline blade (69–) 88–170 mm. Flowers: caly× lobe margins densely ciliate; corolla: abaxial lobes 10–16 mm; staminode 4–8 (–12) mm. 2n = 84.


Phenology: Flowering Jul–Oct.
Habitat: Along streams, marshes, swamps, seeps, springs, wet meadows and woods, pond and lake margins.
Elevation: 90–200 m.

Distribution

Ark., Ill., Ind., Iowa, Ky., Mich., Minn., Mo.

Discussion

Variety speciosa occurs in the Interior Low and Ozark plateaus as well as Central Lowland provinces, where it is vulnerable to extinction. NatureServe (www.natureserve.org/explorer) estimates 21 to 80 populations of var. speciosa throughout its range and cites activities affecting wetland hydrology as threats to these populations.

Selected References

None.

Lower Taxa

None.

1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
ovate;rounded +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
villous +, pilose +  and glabrous +
1.3 cm13 mm <br />0.013 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
Allan D. Nelson +
Pennell & Wherry +
alternate +, opposite +, whorled +, helical +  and subopposite +
cuneate +
elliptic +  and elliptic to narrowly +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (19.7 cm197 mm <br />0.197 m <br />) +
not leathery +  and not fleshy +
8mm;35mm +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
acuminate;acute +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Rose or purple turtlehead +
paler +  and white +
spikelike +
3.8 cm38 mm <br />0.038 m <br /> (8.6 cm86 mm <br />0.086 m <br />) +
Ark. +, Ill. +, Ind. +, Iowa +, Ky. +, Mich. +, Minn. +  and Mo. +
drupe-like +
90–200 m. +
curved +  and straight +
pubescent +  and villous +
1 +  and 4 +
Along streams, marshes, swamps, seeps, springs, wet meadows and woods, pond and lake margins. +
persistent +  and deciduous +
serrate +  and dentate +
entire +  and subentire toothed or lobed +
2 times-serrate teeth +
6.9 cm69 mm <br />0.069 m <br /> (8.8 cm88 mm <br />0.088 m <br />) +
8.8 cm88 mm <br />0.088 m <br /> (17 cm170 mm <br />0.17 m <br />) +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
white-bearded +  and yellow-bearded +
5 +  and 4 +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jul–Oct. +
minute +
globular +  and ovoid +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
purple +  and green +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
25 cm250 mm <br />0.25 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
Chelone obliqua subsp. speciosa +
Chelone obliqua var. speciosa +
Chelone obliqua +
variety +
gibbous +  and not spurred +
1.4 cm14 mm <br />0.014 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +