Crataegus lassa Beadle

Species

Angiosperms > Rosales > Rosaceae > Crataegus

Characteristics

Shrubs or trees, 20–50 dm, branches ± weeping. Stems: ?trunk bark ashy gray, rough or scaly?; twigs: new growth densely white-canescent, 1-year old purple-brown or blackish, older dark gray; thorns on twigs ?absent or rare?, straight or slightly recurved, 1-year old blackish or purple-brown, ± stout, 3–4.5 cm. Leaves: petiole length 25–33% blade, ?winged distally?, densely pubescent, glandular; blade obovate-cuneate to narrowly obovate, 2–4 cm (length/width = 1.6–2.1), ± coriaceous (floppy in wind), base gradually tapered, lobes 0 or 2–4 per side, ?subterminal, toothlike?, margins glandular-denticulate to subentire, veins 2–4(or 5) per side (except smaller leaves), apex often strikingly cuspidate, surfaces ± white-pubescent young, especially on abaxial veins, glabrescent. Inflorescences 3–5-flowered; branches tomentose; bracteoles linear, margins glandular. Flowers 15–20 mm diam.; hypanthium tomentose; sepals narrowly triangular, ?6–8 mm?, margins finely glandular-serrate, abaxially ± tomentose, especially proximally; anthers cream or ivory; styles 3–5. Pomes yellow blushed red to orange-red, suborbicular, (8–)10–12 mm diam., pubescent; sepals spreading-recurved or lost; pyrenes 3–5.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0 - 6.0
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) -

Usage

Uses -
Edible fruits
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 -

Distribution

Crataegus lassa world distribution map, present in United States of America

Conservation status

Crataegus lassa threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:68501-2
WFO ID wfo-0000983582
COL ID Z85K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Crataegus sodalis Crataegus dolosa Crataegus rava Crataegus inops Crataegus amica Crataegus frugalis Crataegus arguta Crataegus vicana Crataegus rimosa Crataegus inopina Crataegus villaris Crataegus curva Crataegus adusta Crataegus illudens Crataegus integra Crataegus recurva Crataegus incana Crataegus constans Crataegus dapsilis Crataegus crocea Crataegus audens Crataegus lanata Crataegus panda Crataegus meridiana Crataegus flava var. integra Crataegus lassa