Crataegus calpodendron (Ehrh.) Medik.

Pear hawthorn (en)

Species

Angiosperms > Rosales > Rosaceae > Crataegus

Characteristics

Shrubs or trees, ?usually multi-stemmed?, 50–70 dm. Stems: twigs: new growth golden brown, appressed-pubescent, 1-year old brown to grayish brown, 2-years old gray-brown, older ± pale gray; thorns on twigs absent or numerous, recurved (if longer), 1-year old shiny, dark brown, older turning gray, slender, 2.5–6 cm. Leaves: petiole length 25–30% blade, ?narrowly winged most of length?, finely pubescent, eglandular; blade ± rhombic or rhombic-narrowly ovate, sometimes suborbiculate, 3–12 cm, thin, base cuneate, lobes 0 or 5–8 per side, sinuses shallow, lobe apex subacute to acute, margins serrate except in proximal 1/4, veins 8 per side, apex usually acute, abaxial surface persistently appressed-pubescent, especially on veins, adaxial scabrate young, glabrous mature. Inflorescences 12–25-flowered; branches densely appressed-pubescent; bracteoles linear, margins stipitate-glandular. Flowers 13–15(–22) mm diam.; hypanthium pubescent; sepals narrowly triangular, length not recorded, margins nearly entire or shallowly glandular-serrate, abaxially pubescent, adaxial pubescence not recorded; stamens 20, anthers usually red, pink, or purple, sometimes white, ?small?; styles 2 or 3. Pomes orange-red to scarlet, ellipsoid to sometimes orbicular, (5–)7–9(–10) mm diam., pubescent; ?flesh soft?; sepals reflexed or spreading; pyrenes 2 or 3, sides pitted. 2n = 34, 51.
More
A shrub with many stems. It grows 3-4 m tall. The trunk can be 15 cm across. The leaves are 5-8 cm long. They are hairy and dull yellowish-green. There are few thorns. If they occur they are 3-4 cm long and stout. They are glossy and deep brown. The flowers are 12 mm wide with 5 white petals. The fruit are very small. They are 4-8 mm across. They are pear shaped. They are shiny orange-red.
Much like no. 6 [Crataegus succulenta Schrad.], but more prominently hairy and with larger lvs; twigs villous or tomentose when young; lvs 5–9 × 4–8 cm, short-villous above and usually also beneath; petiole 1–1.5 cm; infl ± villous or tomentose. S. Ont. and N.Y. to Ga. and Ala., w. to Minn., Kans., and Tex. (C. fontanesiana; C. whitakeri)
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 10.0
Mature height (meter) 5.0 - 6.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Open woods, thickets and field margins, especially by small rocky streams; at elevations from 10-800 metres.
More
It is a temperate plant.
Light 4-9
Soil humidity 3-8
Soil texture 1-5
Soil acidity 3-9
Soil nutriment -
Hardiness (USDA) 5-6

Usage

Uses material medicinal wood
Edible fruits seeds
Therapeutic use Stimulant (bark), Urinary Aid (fruit), Stimulant (root), Analgesic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed. The seed need cold treatment. Plants can also be grafted.
Mode graftings seedlings
Germination duration (days) 180 - 730
Germination temperacture (C°) 16 - 18
Germination luminosity -
Germination treatment scarification
Minimum temperature (C°) -23
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Crataegus calpodendron unspecified picture

Distribution

Crataegus calpodendron world distribution map, present in Canada and United States of America

Conservation status

Crataegus calpodendron threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:30097127-2
WFO ID wfo-0001010107
COL ID Z7TS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Crataegus crus-galli Crataegus tomentosa Crataegus leucophleos Crataegus pyrifolia Mespilus calpodendron Mespilus latifolia Mespilus pyrifolia Mespilus lutea Crataegus calpodendron Crataegus acanthacolonensis Crataegus chapmanii Crataegus globosa Crataegus tomentosa Crataegus tomentosa Halmia tomentosa Mespilus leucophoeus Mespilus tomentosa Crataegus fontanesiana Halmia tomentosa var. leucophloea Halmia tomentosa var. calpodendron Crataegus chapmanii var. plukenetii Crataegus calpodendron var. gigantea Crataegus calpodendron var. globosa Crataegus calpodendron var. hispida Crataegus calpodendron var. obesa Crataegus calpodendron var. hispidula Crataegus calpodendron var. microcarpa Crataegus calpodendron var. mollicula Crataegus tomentosa var. chapmanii Crataegus calpodendron var. calpodendron