Crataegus macrosperma Ashe (Q4278)

taxon name

Crataegus macrosperma

1 reference

taxon authority

Ashe

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

aubépine à lobes aigus (French)

1 reference

big-fruited hawthorn (English)

1 reference

variable hawthorn (English)

1 reference

early thorn (English)

1 reference

Eastern hawthorn (English)

1 reference

aubépine à lobes aigus (English)

1 reference

VasCan taxon numeric id

8695

1 reference

distribution

CA-NB

present

native

1 reference

Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.

Newfoundland, CA

present

native

1 reference

Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm

CA-NS

present

native

1 reference

Roland, A.E. & E.C. Smith. 1969. The Flora of Nova Scotia. Nova Scotia Museum, Halifax, N.S. [Reprinted from Proc. N.S. Inst. Sci. 26]

CA-ON

present

native

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

present

native

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-NB

N.B.

1 reference

CA-NL

Nfld. and Labr. (Nfld.)

1 reference

CA-NS

N.S.

1 reference

CA-ON

Ont.

1 reference

CA-PE

P.E.I.

1 reference

CA-QC

Que.

1 reference

US-AL

Ala.

1 reference

US-AR

Ark.

1 reference

US-CT

Conn.

1 reference

US-IL

Ill.

1 reference

US-IN

Ind.

1 reference

US-KY

Ky.

1 reference

US-ME

Maine

1 reference

US-MD

Md.

1 reference

US-MA

Mass.

1 reference

US-MI

Mich.

1 reference

US-MN

Minn.

1 reference

US-NH

N.H.

1 reference

US-NJ

N.J.

1 reference

US-NY

N.Y.

1 reference

US-NC

N.C.

1 reference

US-OH

Ohio

1 reference

US-PA

Pa.

1 reference

US-RI

R.I.

1 reference

US-TN

Tenn.

1 reference

US-VT

Vt.

1 reference

US-VA

Va.

1 reference

US-WV

W.Va.

1 reference

US-WI

Wis.

1 reference

Crataegus ser. Tenuifoliae (Sargent) Rehder

parent taxon

1 reference

taxon habit

shrub

1 reference

GBIF taxon key

3014896

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

LC

1 reference

Global Biodiversity Information Facility

phenology

Flowering Apr–Jun; fruiting Sep–Nov.

1 reference

taxon habitat

old fields

1 reference

fencerows

1 reference

brush

1 reference

open woods

1 reference

montane balds

1 reference

rocky slopes

1 reference

elevation

0–1600 m

1 reference

special status

E

1 reference

taxon description fragment

Shrubs or trees, multistemmed, 30–70 dm.

1 reference

d0_s0

thorns on twigs 1-year old shiny, deep brown to blackish, often black-tipped, stout to slender, 2.5–6 cm.

1 reference

d0_s2

Leaves: petiole length 30–60% blade, sparsely to densely glandular;

1 reference

d0_s3

blade ovate, 3–6 (–9) cm, 70–100% mature size at anthesis, base subcordate, truncate, or rounded to cuneate, lobes 3–6 per side, sinuses moderately deep, lobe apex acute to acuminate, margins serrate, teeth numerous, small, larger ones conspicuously glandular, particularly at base, smaller ones inconspicuously gland-tipped, veins 4–7 per side, apex acute, adaxial surface densely appressed-scabrous-pubescent young, glabrescent, rarely glabrate.

1 reference

d0_s4

Inflorescences 5–12-flowered;

1 reference