Crataegus pennsylvanica Ashe

Pennsylvania hawthorn (en)

Species

Angiosperms > Rosales > Rosaceae > Crataegus

Characteristics

Shrubs or trees, 70–80 dm. Stems: ?trunk bark newly exposed orange-brown, older buff, fibrous, checked into longitudinal plates?; twigs: new growth densely pubescent, 1-year old fawn, older gray; thorns on twigs absent or few, usually recurved, 2-years old shiny dark brown to blackish, stout to more slender, 3–5 cm. Leaves: ?stipules axillary, circinate, herbaceous, gland-bordered?; petiole ?relatively slender, stouter than C. coccinea?, length 30–35% blade, densely pubescent young, sparsely mature, often sparsely stipitate-glandular; blade broadly ovate to ovate-deltate, 6–10 cm, slightly coriaceous, base broadly cuneate to truncate, lobes 4–6 per side, sinuses shallow, lobe apex acute to obscure, margins sharply serrate, ?teeth at base often stipitate-glandular?, veins 5–7 per side, apex acute, abaxial surface sparsely scabrous-pubescent young, glabrescent, veins hairy mature, adaxial densely appressed-scabrous young. Inflorescences 8–20-flowered; branches tomentose; bracteoles variably persistent, linear-lanceolate, membranous to (larger) ± herbaceous, margins glandular. Flowers 17–21 mm diam.; hypanthium densely tomentose; sepals narrowly triangular, 7–8 mm, margins glandular-laciniate, abaxially glabrate; stamens 5 or 6, or 10, anthers cream to pale pink or salmon; styles 4 or 5. Pomes bright red, suborbicular, 10–12 mm diam., densely villous; sepals prominent, erect-patent; pyrenes 4 or 5.
Life form
Growth form
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 7.0 - 8.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Open woods and thickets in moist fertile soils. Meadows in low, moist soils. Brush, successional fields, open woodlands, fencerows; at elevations from 10-200 metres.
Light 4-9
Soil humidity 4-8
Soil texture 1-5
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-9

Usage

Uses material medicinal wood
Edible fruits seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings. Seeds needs scarification.
Mode seedlings
Germination duration (days) 180 - 730
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment scarification
Minimum temperature (C°) -25
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Crataegus pennsylvanica unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:68749-2
WFO ID wfo-0001010527
COL ID 6BB72
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Crataegus pennsylvanica Crataegus tatnalliana