Tripleurospermum maritimum subsp. phaeocephalum
Acta Bot. Fenn. 75: 9. 1967.
Common names: Seashore or wild chamomile matricaire à capitules brunâtres
Basionym: Matricaria inodora var. phaeocephala Ruprecht Fl. Samojed. Cisural., 42. 1845
Synonyms: Matricaria ambigua (Ledebour) Krylov Matricaria maritima subsp. phaeocephala (Ruprecht) Rauschert Matricaria maritima var. phaeocephala (Ruprecht) Rauschert Tripleurospermum hookeri (Ruprecht) Pobedimova Tripleurospermum phaeocephalum
Revision as of 19:53, 29 July 2020 by imported>Volume Importer
Phyllaries broadly triangular, scarious margins blackish brown, 0.4–1 mm wide. Cypselae: resin-gland lengths usually little more than twice widths. 2n = 18.
Phenology: Flowering Jul–Oct.
Habitat: Low Arctic seashores and beaches (near high tide strand line), moist to moderately well-drained areas, gravel, sand, moss
Elevation: 0–50 m
Distribution
Greenland, Man., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, arctic Eurasia
Discussion
Subspecies phaeocephalum occurs along the low Arctic shore (both continental and insular) from Alaska to Quebec; it does not penetrate north into the Canadian Arctic Archipelago; it does not reach Labrador; it is present in Greenland. If treated as a species, the name T. hookeri Schultz-Bipontinus has priority (N. N. Tzvelev 2002b).
Selected References
None.
Lower Taxa
None.
... more about "Tripleurospermum maritimum subsp. phaeocephalum"
elongate +
rugose +
roughened +
introrse +
connate +
truncate +
mucronate;obtuse +
scarious +
ovate +
hirsute +
papillate +
absent +
corymbiform +
continuous +
decurrent +
lobed;oblong +
stigmatic +
absent +
absent +
lacking +
dimorphic +
2.5 cm25 mm <br />0.025 m <br /> (?) +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
Low Arctic seashores and beaches (near high tide strand line), moist to moderately well-drained areas, gravel, sand, moss +
singly +
indeterminate +
10;50 +
surrounding +
hemispheric;patelliform +
oblong +
alternate +
deltate +
blackish brown +
lobed +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
herbaceous +
falling +
unequal +
Acta Bot. Fenn. +
1967 +
pistillate +
absent +
fertile +
epaleate +
convex;conic +
fibrous +
exalbuminous +
modifed +
2;5 +
alternate +
branched +
procumbent +
ascending +
2-branched +
glabrous +
papillate +
Tripleurospermum maritimum subsp. phaeocephalum +
Tripleurospermum maritimum +
subspecies +
campanulate +
cylindric +
cylindric +
fleshy +
perennial +