Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 14 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=14 | sources=1 | contradictions=0
Claim Types: source_reference_abbreviation:3, culinary_use:2, description_snippet:2, breeder_reference:1, fruit_color:1, fruit_size:1, ripening_window:1, taxon_context:1 | Open evidence summary JSON | Open citation drawer JSON
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Olga is a small fruited crabapple, listed as a cross of Duchess and Malus baccata var. mandshurica, and associated with Hansen in 1919. The fruit is described as about 3 cm across, bright cherry red, and marked with white dots or bloom [S1].
Directory notes point to Olga mainly as a processing apple for jelly, with later catalog coding also suggesting juice use and late season ripening [S1]. A 1925 reference described it as "worthy of limited trial," and it was also cited in the Lacombe Nursery catalog of 1940 [S1].
Summary source basis
This summary currently draws chiefly from Plant Introductions, with 3 additional supporting sources linked below.
Featured source descriptions
“Olga was one of the named Siberian crab varieties from which seedlings were distributed in 1924.”
— [3]
“Also cited in Lacombe Nursery catalog (1940), L&U, and FB3 H1.”
— [1]
“Dots distinct, white, many large; basin quite shallow, smooth; cavity wide, obtuse with considerable russet.”
— [3]
“Indexed to Bulletin 224, page 15.”
— [2]
Direct parent cultivars
Parentage claim text
Derived or downstream cultivar links
Source-story quotations
Taxonomy context: No family-tree context surfaced yet.
Related cultivars mentioned in source context
Zone assertions are structured rows. Hardiness claim text appears in evidence claims and page-linked citations.
| Zone Min | Zone Max | Zone Text | Assertion Type | Outcome | Location | Confidence |
|---|---|---|---|---|---|---|
| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 3 | Edible Apples in Prairie Canada | unknown | 14 | 0 | 0 | p52 | References cited: WCSH (Western Canadian Society for Horticulture (1944- ).).; Source code indicates late season.; Source code indicates juice.; Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diamete |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 3 | p52 | source_reference_abbreviation | References cited: WCSH (Western Canadian Society for Horticulture (1944- ).). | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | ripening_window | Source code indicates late season. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | culinary_use | Source code indicates juice. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | description_snippet | Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diameter). | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | entry_hardiness_observation | Catalog note includes FB3 and H1, indicating most susceptible to fireblight injury and the hardiest hardiness class. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | description_snippet | Catalog note includes Land Jcodes, expanded as late and juice. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | source_reference_abbreviation | Lacombe Nursery catalog (1940) is cited. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | source_reference_abbreviation | Reference cites WCSH (1925), with the note 'winter of limited trial.' | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | culinary_use | Noted for jelly use. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | fruit_color | Fruit bright cherry red with slight white dots. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | fruit_size | Fruit about 3 cm. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | taxon_context | Marked CR, expanded as crabapple or applecrab with fruit less than 5 cm diameter. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | breeder_reference | Associated with Hansen (1919). | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| 3 | p52 | entry_pedigree | Parentage given as Duchess x Bacata mandshurica. | Olga (Duchess x Bacata mandshurica) Hansen (1919) CR Fruit 3cm, bright cherry red. With slight white dots, jelly. | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| source_reference_abbreviation | References cited: WCSH (Western Canadian Society for Horticulture (1944- ).). | 0.93 |
| ripening_window | Source code indicates late season. | 0.90 |
| culinary_use | Source code indicates juice. | 0.90 |
| description_snippet | Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diameter). | 0.96 |
| entry_hardiness_observation | Catalog note includes FB3 and H1, indicating most susceptible to fireblight injury and the hardiest hardiness class. | 0.72 |
| description_snippet | Catalog note includes L and J codes, expanded as late and juice. | 0.79 |
| source_reference_abbreviation | Lacombe Nursery catalog (1940) is cited. | 0.89 |
| source_reference_abbreviation | Reference cites WCSH (1925), with the note 'winter of limited trial.' | 0.83 |
| culinary_use | Noted for jelly use. | 0.90 |
| fruit_color | Fruit bright cherry red with slight white dots. | 0.95 |
| fruit_size | Fruit about 3 cm. | 0.97 |
| taxon_context | Marked CR, expanded as crabapple or applecrab with fruit less than 5 cm diameter. | 0.98 |
| breeder_reference | Associated with Hansen (1919). | 0.94 |
| entry_pedigree | Parentage given as Duchess x Bacata mandshurica. | 0.95 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||