Seeds of South Australia
Evolvulus alsinoides var. villosicalyx (Convolvulaceae)
Shaggy Speedwell
List of species for Evolvulus
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Seed collecting:
June to November
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
SUMMARY
Northern Flinders (FLB05)Flinders Lofty Block
 Least Concern
Kintore (GVD04)Great Victoria Desert
 Near Threatened
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(i,ii))
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Rare   (IUCN: RA d(i,ii))
Strzelecki Desert (SSD05) 
 Least Concern
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(ii))
Murnpeowie (STP03) 
 Near Threatened
Macumba (STP05) 
 Rare   (IUCN: RA d(ii))
Witjira (STP06) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Near Threatened
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Near Threatened
Tieyon (FIN03)Finke
 Near Threatened
Pedirka (FIN04) 
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Northern Flinders (FLB05)Flinders Lofty BlockLeast Concern
2 of 4 subregionsGreat Victoria DesertNear Threatened
, Rare
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Rare
4 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
, Rare
3 of 4 subregionsChannel CountryLeast Concern
, Near Threatened
2 of 3 subregionsCentral RangesLeast Concern
, Near Threatened
2 of 2 subregionsFinkeNear Threatened
, Rare
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Evolvulus]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Evolvulus  from the Latin 'evolvere' meaning to unroll; referring to their non-twining habit. Alsinoides means resembling a species of the genus Alsine. Villosicalyx  from the Latin 'villus' meaning shaggy hair and from the Greek 'kalyx' meaning cup-shaped; referring to the species hairy sepals.
Distribution:
Found in the northern part of South Australia, growing on sand, loam and clay in claypans, along drainage lines and dunes. Also found in Western Australia, Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Perennial herbs or subshrubs with ascending or prostrate hairy stems. Leaves entire, hairy. Inflorescence axillary with a single blue/white funnel-shaped flower. Flowering throughout the year but mainly between March and August. Evolvulus alsinoides var. villosicalyx differ from the other variety  E. alsinoides var. decumbens by having the peduncles shorter than or rarely equalling the leaves (much longer than the leaves in var. decumbens), pedicels 1–4 mm long (2–7 mm long in var. decumbens)  and sepals 4–5 mm long, densely hairy, hairs spreading (2–3mm long, sparsely to densely hairy, hairs appressed to spreading in var. decumbens).
Fruit type:
Brown globular capsule with hairy sepals, splitting into 4 valves.
Seed type:
Orange to brown sectoroid seed to 1.5 mm long and 1.2 mm wide, glabrous.
Embryo type:
Folded.
Seed collecting:
Collect capsules that are maturing, turning brown and contain hard seeds inside. Capsules can be opened or unopened and some seed can be collected from the ground under the plant.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand or with a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed viability:
From one collection, the seed viability was average, at 65%.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking the seed coat).