Лисичка съедобная.

In Russian, the verb to be is usually omitted in the present tense.

So:

• Лисичка съедобная. = The chanterelle is edible.

This is completely normal Russian. If you wanted past or future, Russian would use a form of to be:

• Лисичка была съедобная. = The chanterelle was edible.
• Лисичка будет съедобная. = The chanterelle will be edible.

In the present tense, Russian normally just leaves it out.

Because it agrees with лисичка, which is a feminine singular noun.

Russian adjectives must match the noun in:

• gender
• number
• case

Here:

• лисичка is feminine singular
• so the adjective must also be feminine singular
• therefore: съедобная

Compare:

• гриб съедобный — masculine
• лисичка съедобная — feminine
• яблоко съедобное — neuter
• грибы съедобные — plural

It is in the nominative case.

This sentence is basically an X is Y sentence:

• Лисичка = the subject
• съедобная = what is being said about it

Dictionary forms are usually nominative, and both words here are in that basic form.

When an adjective simply describes a noun inside a noun phrase, it usually comes before the noun:

• съедобная лисичка = an edible chanterelle

But in Лисичка съедобная, the adjective comes after because it is part of the predicate, not just a modifier. The structure is more like:

• The chanterelle is edible

So:

• съедобная лисичка = an edible chanterelle
• Лисичка съедобная = The chanterelle is edible

That word order changes the grammatical function.

Yes. Russian often uses a short-form adjective in this kind of statement.

So both are possible:

• Лисичка съедобная.
• Лисичка съедобна.

The short form съедобна is especially typical in statements like is edible / is ready / is necessary.

Very roughly:

• съедобная = full form
• съедобна = short form, often more predicate-like

Both are understandable, but the short form can sound more standard in formal descriptive statements.

Лисичка can mean different things depending on context:

1. chanterelle (the mushroom)
2. little fox or dear fox (a diminutive of лиса)

In this sentence, the intended meaning is almost certainly chanterelle, because edible fits naturally with mushrooms.

This is a good example of how Russian words can be ambiguous without context.

Yes, the ending -ичка often looks diminutive, and in the animal meaning it really is:

• лиса = fox
• лисичка = little fox / foxy / dear fox

But as the name of the mushroom, лисичка is just the normal everyday word for chanterelle. In that meaning, learners should treat it as a standard vocabulary item, not necessarily as an actively felt diminutive.

So even though it historically looks like a diminutive, for the mushroom it functions like an ordinary noun.

A good pronunciation is approximately:

• съедобная → sye-DOB-na-ya

The hard sign ъ does not have its own sound. Its job is to separate the consonant from the following iotated vowel, so that е is pronounced more like ye.

Without getting too technical:

• съе- sounds like sye-
• the ъ prevents the preceding consonant from simply becoming soft in the usual way

Stress is on:

• лиси́чка
• съедо́бная

Russian has no articles.

So Лисичка съедобная could mean, depending on context:

• The chanterelle is edible
• A chanterelle is edible
• Chanterelles are edible in a general/classificatory sense, if context supports that kind of reading

Russian relies on context, word order, and sometimes extra words like эта (this) or какая-то (some) if the speaker wants to be more specific.

For example:

• Эта лисичка съедобная. = This chanterelle is edible.

Yes, absolutely.

• Лисичка съедобная. = The chanterelle is edible / Chanterelle is edible
• Эта лисичка съедобная. = This chanterelle is edible

Adding эта makes the sentence more specific. Without it, the sentence can sound more general or dictionary-like, depending on context.

By itself, it can sound a bit like a descriptive statement, identification, or even a field-guide style fact.

For example, it could fit contexts like:

• identifying mushrooms
• saying whether something is safe to eat
• listing characteristics of a species

Because the sentence is so short and lacks extra context, it can feel more factual than conversational. In everyday speech, people might often say something a little fuller, such as:

• Эта лисичка съедобная.
• Лисички съедобные.
• Да, это съедобная лисичка.

All of these sound more anchored in a real situation.