Crataegus phippsii o'kennon

Phipps' hawthorn (en)

Species

Angiosperms > Rosales > Rosaceae > Crataegus

Characteristics

Shrubs or trees, 50–60(–70) dm. Stems: ?main trunk usually present, sometimes suckering?; twigs: new growth densely short-pubescent, 1-year old dark purple-brown, older dark gray; thorns on twigs ?few?, slightly recurved, ?deep brown to black?, ± slender, 2–4 cm. Leaves: petiole 1.5–2 cm, hairy, glandularity not recorded; blade broadly elliptic to ovate or broadly deltate-ovate, 4–8 cm (–10 cm on extension shoots), becoming ± coriaceous, base cuneate to very broadly cuneate, lobes 3 per side, sinuses ± shallow, lobe apex rounded to broadly angled, margins short-serrate, veins 4(or 5) per side, apex obtuse or subacute, abaxial surface subglabrous or glabrescent, veins persistently short-hairy, adaxial short-appressed-hairy. Inflorescences 6–12-flowered; branches densely short-tomentose; bracteole margins stipitate-or sessile-glandular. Flowers 15–22 mm diam.; hypanthium densely tomentose, ?disc interior glabrous, bristly at center?; sepals broadly triangular, 4–5 mm, margins glandular-serrate, ?apex subacute?, abaxially pubescent (especially near base); stamens 10, anthers pale pink; styles 2–4, ?stigmas capitate?. Pomes red to plum purple (Aug) to nearly black (Sep), ± orbicular to broadly ovoid, 12 mm diam., short-pubescent; sepals erect-patent to patent-incurved, 4–5 mm; pyrenes 3, sides irregularly eroded or ± plane. 2n = 68.
Life form annual
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 5.0 - 6.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-9
Soil humidity 3-7
Soil texture 1-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 180 - 730
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Crataegus phippsii o'kennon unspecified picture

Distribution

Crataegus phippsii o'kennon world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:316583-2
WFO ID wfo-0000987069
COL ID 7NFPC
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Crataegus phippsii o'kennon