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: 24 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=24 | sources=2 | contradictions=0
Claim Types: description_snippet:3, fruit_size:3, breeder_reference:1, breeding_cross:1, culinary_use:1, fruit_color:1, keeping_quality:1, productivity:1, release_year_reference:1, source_reference_abbreviation:1, storage_duration:1 | Open evidence summary JSON | Open citation drawer JSON
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Erl Trio is a Trio crabapple. It is a three species apple crabapple selection tied to N. E. Hansen and dated 1938 in both sources. Its recorded parentage is Fluke No. 10 x Pyrus baccata x Dolgo crab. This places it in Hansen's hardy northern breeding work rather than among standard dessert apples. [S1] [S2]
The record is brief but consistent. Hansen's bulletin lists Erl Trio among the International or Three Species Apples and gives it as a named crabapple selection from 1938. A later prairie apple reference repeats the same pedigree in shorter form as Fluke 10 / baccata / Dolgo and again credits Hansen in 1938. [S1] [S2]
Sources describe the fruit as about 1 1/2 inches across, or about 5 cm, with a solid dull red finish over a green ground. The flesh is white, red next to the skin, juicy, and subacid. It was noted for staying firm in cooking without becoming acerb. This suggests a useful kitchen crab and also some fresh eating quality. [S1] [S2]
Erl Trio also stands out for keeping quality. Hansen's description calls it an all winter keeper, and the later prairie reference also says it keeps well. [S1] [S2]
The tree is described as having strong forks and bearing heavily. The later prairie source also says it bears well. This supports the picture of a productive tree with solid branch structure. [S1] [S2]
These sources do not give a direct zone rating or winter survival note. Its hardiness is supported mainly by context. Erl Trio came from Hansen's program for the northern Great Plains and belongs to a group of baccata based hardy crabapple material selected for severe prairie conditions. [S1] [S2]
Erl Trio is part of an older breeding stream that combined Fluke No. 10, Pyrus baccata, and Dolgo crab to produce hardy fruit with long keeping quality. That pedigree links it to the broader Trio group of international or three species apples, where hardiness, bearing, and useful culinary fruit were central breeding aims. [S1] [S2]
Summary source basis
This summary currently draws chiefly from New Hardy Fruits for the Northwest, with 1 additional supporting sources linked below.
Featured source descriptions
“Listed in the table of contents under 'International or Three-Species Apples.'”
— [1]
“Reference points to Bulletin 339, page 21.”
— [1]
“Flesh white, subacid, red next to skin.”
— [1]
“Flesh subacid, juicy.”
— [1]
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 |
|---|---|---|---|---|---|---|---|
| 1 | New Hardy Fruits for the Northwest | unknown | 16 | 0 | 0 | p22 | Erl Trio: An all winter keeper; Erl Trio: Fruit 1 Yz inches across, solid dull red over green ground, flesh subacid, juicy.; Erl Trio: cooking but is not acerb; Erl Trio: keeper |
| 3 | Edible Apples in Prairie Canada | unknown | 8 | 0 | 0 | p28 | Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diameter).; Reference cited as F&N.; Keeps well.; Bears well. |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 3 | p28 | description_snippet | Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diameter). | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | source_reference_abbreviation | Reference cited as F&N. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | keeping_quality | Keeps well. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | productivity | Bears well. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | fruit_size | Fruit 4 cm. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | fruit_size | Marked CR, meaning a crabapple or applecrab with fruit less than 5 cm diameter. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | breeder_reference | Associated with Hansen (1938). | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 3 | p28 | entry_pedigree | Parentage or formula appears as Fluke 10/occata/Dolgo. | Erl Trio (Fluke 10/occata/Dolgo) Hansen (1938) CR Fruit 4cm. Bears well and keeps well. Ref F&N. | page_block:0.90 |
| 1 | p22 | verbatim_quote | An all winter keeper | An all winter keeper | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | Flesh white, subacid, red next to skin, remains firm in cooking but is not acerb | Flesh white, subacid, red next to skin, remains firm in cooking but is not acerb | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | Tree with strong forks and a heavy bearer | Tree with strong forks and a heavy bearer | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | Fruit 1 Yz inches across, solid dull red over green ground, flesh subacid, juicy | Fruit 1 Yz inches across, solid dull red over green ground, flesh subacid, juicy | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | 10 x Pyrus baccata x Dolgo crab | 10 x Pyrus baccata x Dolgo crab | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | Fluke No | Fluke No | normalized_exact:1.00 |
| 1 | p22 | verbatim_quote | ERL TRIO crabapple-1938 | ERL TRIO crabapple-1938 | normalized_exact:1.00 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| description_snippet | Listed as a crabapple (crabapple or applecrab, fruit less than 5 cm diameter). | 0.96 |
| source_reference_abbreviation | Reference cited as F&N. | 0.74 |
| keeping_quality | Keeps well. | 0.95 |
| productivity | Bears well. | 0.94 |
| fruit_size | Fruit 4 cm. | 0.95 |
| fruit_size | Marked CR, meaning a crabapple or applecrab with fruit less than 5 cm diameter. | 0.98 |
| breeder_reference | Associated with Hansen (1938). | 0.93 |
| entry_pedigree | Parentage or formula appears as Fluke 10/occata/Dolgo. | 0.57 |
| description_snippet | An all winter keeper | 0.54 |
| description_snippet | Fruit 1 Yz inches across, solid dull red over green ground, flesh subacid, juicy. | 0.54 |
| culinary_use | cooking but is not acerb | 0.56 |
| storage_duration | keeper | 0.56 |
| fruit_size | 1 1/2 inches | 0.58 |
| fruit_color | white | 0.55 |
| structured_entry_json | {"cultivar_name":"Erl Trio","year":1938,"heading_raw":"ERL TRIO","locations":[],"crosses":["x Pyrus baccata x Dolgo crab"],"fruit_size_mentions":["1 1/2 inches"],"color_mentions":["dull red","green","red"],"morphology_te | 0.95 |
| verbatim_quote | An all winter keeper | 0.97 |
| verbatim_quote | Flesh white, subacid, red next to skin, remains firm in cooking but is not acerb | 0.97 |
| verbatim_quote | Tree with strong forks and a heavy bearer | 0.97 |
| verbatim_quote | Fruit 1 Yz inches across, solid dull red over green ground, flesh subacid, juicy | 0.97 |
| verbatim_quote | 10 x Pyrus baccata x Dolgo crab | 0.97 |
| verbatim_quote | Fluke No | 0.97 |
| verbatim_quote | ERL TRIO crabapple-1938 | 0.97 |
| breeding_cross | x Pyrus baccata x Dolgo crab | 0.90 |
| release_year_reference | 1938 | 0.92 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||