Crataegus irrasa Sargent (Q4257)
Jump to navigation
Jump to search
Crataegus irrasa is a taxon with the rank species within the series Crataegus ser. Rotundifoliae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Crataegus irrasa Sargent
|
Crataegus irrasa is a taxon with the rank species within the series Crataegus ser. Rotundifoliae
|
Statements
taxon/id/Crataegus irrasa Sargent
0 references
Crataegus irrasa Sargent
Crataegus irrasa
Sargent
FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
accepted
1 reference
Newfoundland, CA
excluded
1 reference
CA-ON
1 reference
Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
CA-QC
1 reference
Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-NL
Nfld. and Labr. (Nfld.)
1 reference
CA-ON
1 reference
CA-QC
1 reference
US-CT
1 reference
US-NY
1 reference
US-WI
1 reference
Shrubs, spreading into broad thickets, 30–60 dm.
1 reference
twigs: new growth olive or orange-green, slender, marked by large, oblong, pale lenticels, glabrous, 1-year old light, grayish, or deep reddish-brown, at end of 1d year often deep redbrown, 2-years old gray or light-brown tinged with red, older ashy gray;
1 reference
thorns on twigs numerous, straight, 1-year old shiny, deep redbrown, older dark gray, ultimately ashy gray, stout, 3–6 cm.
1 reference
Leaves: stipules oblong-obovate, to falcate and acuminate on extension shoots, glandular-serrate, acuminate, villous;
1 reference
petiole length 33–40% blade, slightly winged distally, adaxially villous young, glandular, glands minute, dark red;
1 reference
blade ovate-oblong to oblong, (4–) 5–7 (–8) cm (more than 1/2 grown at anthesis), on extension shoots similar, larger, thin to chartaceous, base cuneate to nearly truncate, lobes 5 or 6 per side, sinuses moderately deep (max LII 15%), lobe apex acute, ± triangular, margins serrulate, veins 5–7 per side, apex acute, abaxial surface glabrous, adaxial appressed-scabrous, glabrescent.
1 reference
Inflorescences 9–12-flowered;
1 reference
bracteoles linear, small, membranous, margins sessile-glandular.
1 reference
Flowers 13–15 mm diam.;
1 reference
hypanthium glabrous or pubescent;
1 reference
sepals reflexed after flowering, tapering from broad bases, short, margins minutely, bright red glandular, apex acute, abaxially villous;
1 reference
stamens 20, anthers pale-yellow, small;
1 reference
Pomes in broad, multi-fruited clusters, drooping or erect on stout branches;
1 reference
reddish, suborbicular to oblong, 12–14 mm diam., glabrous or pubescent;
1 reference
sepals persistent, sometimes until following spring, prominent, appressed to spreading;
1 reference
pyrenes 4 or 5, full and rounded at ends.
1 reference
1 reference
1 reference
1 reference
1 reference
winged
33-40%; slightly; distally
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
drooping
in broad , multi-fruited clusters
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference